1991 GMC K3500 Exhaust Muffler

Displaying 1 to 24 (of 24 products)

Walker 17222 Exhaust Muffler
for 1991 GMC K3500

DYNOMAX ULTRA-FLO WELDED

Brand:	Walker
Part #:	17222
UPC:	00086387172226
Weight:	13 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Dynomax Ultra Flo Welded Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329 Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329 Wheel Base 135.5 In. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Dynomax Ultra Flo Welded Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329 Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329 Wheel Base 155.5 In. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Dynomax Ultra Flo Welded Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329 Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329 Wheel Base 159.5 In. 2 Per Vehicle

Walker 17234 Exhaust Muffler
for 1991 GMC K3500

DYNOMAX ULTRA-FLO WELDED

Brand:	Walker
Part #:	17234
UPC:	00086387172349
Weight:	18.18 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22171 Wheel Base 131.5 In. 4WD	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22171 Wheel Base 131.5 In. 4WD 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 155.5 In. 4WD	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344 Wheel Base 155.5 In. 4WD 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 155.5 In. 4WD	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler w/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Wheel Base 155.5 In. 4WD 1 Per Vehicle

Walker 17749 Exhaust Muffler
for 1991 GMC K3500

DYNOMAX SUPER TURBO MUFFL

Brand:	Walker
Part #:	17749
UPC:	00086387177498
Weight:	14.38 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Dynomax Super Turbo Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329 Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Super Turbo Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329 Wheel Base 135.5 In. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Dynomax Super Turbo Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329 Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Super Turbo Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329 Wheel Base 155.5 In. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Dynomax Super Turbo Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329 Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Super Turbo Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329 Wheel Base 159.5 In. 2 Per Vehicle

Walker 17845 Exhaust Muffler
for 1991 GMC K3500

PREMIUM PRO-FIT MUFFLER

Brand:	Walker
Part #:	17845
UPC:	086387178457
Weight:	11 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Walker SoundFX Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required. Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required. Wheel Base 135.5 In. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Walker SoundFX Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required. Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required. Wheel Base 155.5 In. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Walker SoundFX Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required. Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler If welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required. Wheel Base 159.5 In. 2 Per Vehicle

Walker 18124 Exhaust Muffler
for 1991 GMC K3500

UNIVERSAL TRU-FIT MUFFLER

Brand:	Walker
Part #:	18124
UPC:	086387181242
Weight:	13.13 lbs
Condition:	New

Engine	Per Vehicle	Position	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 159.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) SoundFX Universal Bracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for Installation Wheel Base 159.5 In. 1 Per Vehicle

Walker 22673 Exhaust Muffler
for 1991 GMC K3500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22673
UPC:	086387226738
Weight:	14.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Below 15000 (lb) GVW Premium with Catalytic Converter Limited Lifetime Warranty If welded assembly, replace all required parts Cab & Chassis Wheel Base 135.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Below 15000 (lb) GVW Premium with Catalytic Converter Limited Lifetime Warranty If welded assembly, replace all required parts Cab & Chassis Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Below 15000 (lb) GVW Premium with Catalytic Converter Limited Lifetime Warranty If welded assembly, replace all required parts Cab & Chassis Wheel Base 159.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Below 15000 (lb) GVW Premium with Catalytic Converter Limited Lifetime Warranty If welded assembly, replace all required parts Cab & Chassis Wheel Base 159.5 In. 1 Per Vehicle

Walker 22719 Exhaust Muffler
for 1991 GMC K3500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22719
UPC:	086387227193
Weight:	15 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Premium with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Limited Lifetime Warranty Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Premium with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Limited Lifetime Warranty Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Premium with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Limited Lifetime Warranty Wheel Base 155.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Premium with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Limited Lifetime Warranty Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Quiet-Flow SS Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 131.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Quiet-Flow SS Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Premium with 3 (in) Muffler Inlet Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle

Bosal 101-1170 Exhaust Muffler
for 1991 GMC K3500

Brand:	Bosal
Part #:	101-1170
UPC:	888563027869
Weight:	5.8 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	If welded assembly, replace all required parts	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV If welded assembly, replace all required parts 2 Per Vehicle

Walker 17195 Exhaust Muffler
for 1991 GMC K3500

PREMIUM PRO-FIT MUFFLER

Brand:	Walker
Part #:	17195
UPC:	086387171953
Weight:	14.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Walker SoundFX Universal Muffler w/ Single Catalytic Converter w/3 Inch Muffler Inlet Dual Outlet Optional SoundFX Universal for 22719 Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Walker SoundFX Universal Muffler w/ Single Catalytic Converter w/3 Inch Muffler Inlet Dual Outlet Optional SoundFX Universal for 22719 Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Walker SoundFX Universal Muffler w/ Single Catalytic Converter w/3 Inch Muffler Inlet Dual Outlet Optional SoundFX Universal for 22719 Wheel Base 155.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Walker SoundFX Universal Muffler w/ Single Catalytic Converter w/3 Inch Muffler Inlet Dual Outlet Optional SoundFX Universal for 22719 Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Optional SoundFX Universal for 22719 Wheel Base 131.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Optional SoundFX Universal for 22719 Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Optional SoundFX Universal for 22719 Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal Muffler w/3 Inch Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Replacement requires Intermediate Pipe. Optional SoundFX Universal for 22719 Wheel Base 155.5 In. 1 Per Vehicle

Walker 17273 Exhaust Muffler
for 1991 GMC K3500

DYNOMAX ULTRA-FLO STAINLE

Brand:	Walker
Part #:	17273
UPC:	00086387172738
Weight:	20.25 lbs
Condition:	New

Engine	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22511} Ultra-Flo VIN: K, TBI, Natural	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22511} Ultra-Flo VIN: K, TBI, Natural
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22719} Ultra-Flo VIN: J, MFI, Natural	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22719} Ultra-Flo VIN: J, MFI, Natural

Walker 17758 Exhaust Muffler
for 1991 GMC K3500

DYNOMAX SUPER TURBO MUFFL

Brand:	Walker
Part #:	17758
UPC:	00086387177580
Weight:	14.63 lbs
Condition:	New

Engine	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	Muffler 131 WB 2-1/2 Inlet Dual Outlet Or {22171} Super Turbo VIN: K, TBI, Natural	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Muffler 131 WB 2-1/2 Inlet Dual Outlet Or {22171} Super Turbo VIN: K, TBI, Natural

Walker 17776 Exhaust Muffler
for 1991 GMC K3500

DYNOMAX SUPER TURBO MUFFL

Brand:	Walker
Part #:	17776
UPC:	00086387177764
Weight:	24 lbs
Condition:	New

Engine	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22511} Super Turbo VIN: K, TBI, Natural	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22511} Super Turbo VIN: K, TBI, Natural
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22719} Super Turbo VIN: J, MFI, Natural	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Muffler 155 WB 2-1/2 Inlet Dual Outlet Or {22719} Super Turbo VIN: J, MFI, Natural

Walker 17896 Exhaust Muffler
for 1991 GMC K3500

ECONOMY PRO-FIT MUFFLER

Brand:	Walker
Part #:	17896
UPC:	086387178969
Weight:	10 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Quiet-Flow SS Muffler 4WD, Cab & Chassis, 135.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Muffler 4WD, Cab & Chassis, 135.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Quiet-Flow SS Muffler 4WD, Cab & Chassis, 159.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Muffler 4WD, Cab & Chassis, 159.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Quiet-Flow SS Muffler 4WD, Extended Cab Pickup, 135.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Muffler 4WD, Extended Cab Pickup, 135.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Quiet-Flow SS Muffler 4WD, Extended Cab Pickup, 155.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Muffler 4WD, Extended Cab Pickup, 155.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Quiet-Flow SS Muffler 4WD, Standard Cab Pickup, 155.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Muffler 4WD, Standard Cab Pickup, 155.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. 2 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	2	Quiet-Flow SS Muffler 4WD, Standard Cab Pickup, 159.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Quiet-Flow SS Muffler 4WD, Standard Cab Pickup, 159.5 WB If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. 2 Per Vehicle

Walker 17905 Exhaust Muffler
for 1991 GMC K3500

ECONOMY PRO-FIT MUFFLER

Brand:	Walker
Part #:	17905
UPC:	086387179058
Weight:	10.63 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Muffler 4WD, Cab & Chassis, 131.5 WB Dual Outlet If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. w/2 1/2 Inlet	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Muffler 4WD, Cab & Chassis, 131.5 WB Dual Outlet If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. w/2 1/2 Inlet 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Muffler 4WD, Extended Cab Pickup, 131.5 WB Dual Outlet If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. w/2 1/2 Inlet	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Muffler 4WD, Extended Cab Pickup, 131.5 WB Dual Outlet If welded Assy, replace all Reqd parts Premium Limited Lifetime Warranty Reg Duty Muffler. w/2 1/2 Inlet 1 Per Vehicle

Walker 18133 Exhaust Muffler
for 1991 GMC K3500

UNIVERSAL TRU-FIT MUFFLER

Brand:	Walker
Part #:	18133
UPC:	086387181334
Weight:	14.8 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV	1	SoundFX Universal Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV SoundFX Universal Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Universal with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Universal with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal with 3 (in) Muffler Inlet Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV SoundFX Universal with 3 (in) Muffler Inlet Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Universal with 3 (in) Muffler Inlet Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV SoundFX Universal with 3 (in) Muffler Inlet Requires 35667 And Two 35564 Modifications and/or Additional Parts May Be Required for Installation Wheel Base 155.5 In. 1 Per Vehicle

Walker 18177 Exhaust Muffler
for 1991 GMC K3500

UNIVERSAL TRU-FIT MUFFLER

Brand:	Walker
Part #:	18177
UPC:	086387181778
Weight:	10.64 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Universal Regular Duty Muffler Single Outlet Muffler Replaces Dual Outlet with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Universal Regular Duty Muffler Single Outlet Muffler Replaces Dual Outlet with 2.5 (in) Muffler Inlet Modifications and/or Additional Parts May Be Required for Installation Wheel Base 131.5 In. 1 Per Vehicle

Walker 18202 Exhaust Muffler
for 1991 GMC K3500

Brand:	Walker
Part #:	18202
UPC:	086387182027
Weight:	14 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Wheel Base 155.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit with 3 (in) Muffler Inlet with Dual Outlets with Single Catalytic Converter Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit with 3 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 131.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit with 3 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	SoundFX Direct Fit with 3 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV SoundFX Direct Fit with 3 (in) Muffler Inlet If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle

Walker 18274 Exhaust Muffler
for 1991 GMC K3500

Brand:	Walker
Part #:	18274
UPC:	086387182744
Weight:	11 lbs
Condition:	New

Engine	Per Vehicle	Position	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 159.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) SoundFX Direct Fit Regular Duty Muffler Requires 35103 If welded assembly, replace all required parts Wheel Base 159.5 In. 1 Per Vehicle

Walker 18337 Exhaust Muffler
for 1991 GMC K3500

Brand:	Walker
Part #:	18337
UPC:	086387183376
Weight:	12.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets If welded assembly, replace all required parts Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle

Walker 18344 Exhaust Muffler
for 1991 GMC K3500

SOUND FX MUFFLER

Brand:	Walker
Part #:	18344
UPC:	086387183444
Weight:	13.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV	1	SoundFX Direct Fit Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV SoundFX Direct Fit Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle

Walker 18354 Exhaust Muffler
for 1991 GMC K3500

SOUND FX MUFFLER

Brand:	Walker
Part #:	18354
UPC:	086387183543
Weight:	13.5 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Below 15000 (lb) GVW with Catalytic Converter If welded assembly, replace all required parts Cab & Chassis Wheel Base 135.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Below 15000 (lb) GVW with Catalytic Converter If welded assembly, replace all required parts Cab & Chassis Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	SoundFX Direct Fit Below 15000 (lb) GVW with Catalytic Converter If welded assembly, replace all required parts Cab & Chassis Wheel Base 159.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV SoundFX Direct Fit Below 15000 (lb) GVW with Catalytic Converter If welded assembly, replace all required parts Cab & Chassis Wheel Base 159.5 In. 1 Per Vehicle

Walker 22171 Exhaust Muffler
for 1991 GMC K3500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22171
UPC:	086387221719
Weight:	14.25 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 5.7L V8 Gas OHV	1	Quiet-Flow SS Premium Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 131.5 In.	1991 GMC K3500 equipped with 5.7L V8 Gas OHV Quiet-Flow SS Premium Regular Duty Muffler with 2.5 (in) Muffler Inlet with Dual Outlets Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 131.5 In. 1 Per Vehicle

Walker 22329 Exhaust Muffler
for 1991 GMC K3500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22329
UPC:	086387223294
Weight:	12 lbs
Condition:	New

Engine	Per Vehicle	Position	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Left (Driver)	Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 159.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 155.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 155.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Right (Passenger)	Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Right (Passenger) Quiet-Flow SS Premium Regular Duty Muffler Limited Lifetime Warranty If welded assembly, replace all required parts Wheel Base 159.5 In. 1 Per Vehicle

Walker 22672 Exhaust Muffler
for 1991 GMC K3500

QUIET-FLOW3 MUFFLER

Brand:	Walker
Part #:	22672
UPC:	086387226721
Weight:	11.11 lbs
Condition:	New

Engine	Per Vehicle	Fit Notes	Fitment Notes
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Walker Quiet-Flow SS Muffler Premium Limited Lifetime Warranty If welded assembly, replace all required parts. Cab & Chassis Wheel Base 135.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker Quiet-Flow SS Muffler Premium Limited Lifetime Warranty If welded assembly, replace all required parts. Cab & Chassis Wheel Base 135.5 In. 1 Per Vehicle
1991 GMC K3500 equipped with 6.2L V8 Diesel OHV	1	Walker Quiet-Flow SS Muffler Premium Limited Lifetime Warranty If welded assembly, replace all required parts. Cab & Chassis Wheel Base 159.5 In.	1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker Quiet-Flow SS Muffler Premium Limited Lifetime Warranty If welded assembly, replace all required parts. Cab & Chassis Wheel Base 159.5 In. 1 Per Vehicle

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1991 GMC K3500

1991 GMC K3500: Exhaust Muffler

$94.83

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Dynomax Ultra Flo Welded Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329Wheel Base 135.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329Wheel Base 135.5 In. 2 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Dynomax Ultra Flo Welded Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329Wheel Base 155.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329Wheel Base 155.5 In. 2 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Dynomax Ultra Flo Welded Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329Wheel Base 159.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22329Wheel Base 159.5 In. 2 Per Vehicle

$297.21

1991 GMC K3500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22171Wheel Base 131.5 In.4WD

1991 GMC K3500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 22171Wheel Base 131.5 In.4WD 1 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 155.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 155.5 In. 1 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 155.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 155.5 In. 1 Per Vehicle

1991 GMC K3500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 155.5 In.4WD

1991 GMC K3500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler. Optional Ultra Flo for 18344Wheel Base 155.5 In.4WD 1 Per Vehicle

1991 GMC K3500 equipped with 5.7L V8 Gas OHV

1

Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 155.5 In.4WD

1991 GMC K3500 equipped with 5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Mufflerw/ 2.5 Muffler Inlet Dual Outlet If welded assembly, replace all required parts. Regular Duty Muffler.Wheel Base 155.5 In.4WD 1 Per Vehicle

$69.35

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Dynomax Super Turbo Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329Wheel Base 135.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Super Turbo Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329Wheel Base 135.5 In. 2 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Dynomax Super Turbo Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329Wheel Base 155.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Super Turbo Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329Wheel Base 155.5 In. 2 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Dynomax Super Turbo Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329Wheel Base 159.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Dynomax Super Turbo Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional Super Turbo for 22329Wheel Base 159.5 In. 2 Per Vehicle

$51.00

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Walker SoundFX Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required.Wheel Base 135.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required.Wheel Base 135.5 In. 2 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Walker SoundFX Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required.Wheel Base 155.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required.Wheel Base 155.5 In. 2 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

2

Walker SoundFX Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required.Wheel Base 159.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Walker SoundFX Universal MufflerIf welded assembly, replace all required parts. Regular Duty Muffler. Optional SoundFX Universal for 22329 Modifications and/or Additional Parts Required.Wheel Base 159.5 In. 2 Per Vehicle

$42.45

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

1

Left (Driver)

SoundFX UniversalBracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for InstallationWheel Base 135.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX UniversalBracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for InstallationWheel Base 135.5 In. 1 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

1

Left (Driver)

SoundFX UniversalBracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for InstallationWheel Base 155.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX UniversalBracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for InstallationWheel Base 155.5 In. 1 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

1

Left (Driver)

SoundFX UniversalBracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for InstallationWheel Base 159.5 In.

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV Left (Driver) SoundFX UniversalBracket May Be Required Regular Duty Muffler Modifications and/or Additional Parts May Be Required for InstallationWheel Base 159.5 In. 1 Per Vehicle

1991 GMC K3500 equipped with 6.2L V8 Diesel OHV

1

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Ultra Flo Welded Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22329
Wheel Base 135.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22329
Wheel Base 135.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Ultra Flo Welded Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22329
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22329
Wheel Base 155.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Ultra Flo Welded Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22329
Wheel Base 159.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22329
Wheel Base 159.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22171
Wheel Base 131.5 In.
4WD

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 22171
Wheel Base 131.5 In.
4WD

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 155.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.
4WD

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Ultra Flo for 18344
Wheel Base 155.5 In.
4WD

1 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 155.5 In.
4WD

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Dynomax Ultra Flo Welded Universal Muffler
w/ 2.5 Muffler Inlet
Dual Outlet
If welded assembly, replace all required parts.
Regular Duty Muffler.
Wheel Base 155.5 In.
4WD

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Super Turbo Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Super Turbo for 22329
Wheel Base 135.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Super Turbo Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Super Turbo for 22329
Wheel Base 135.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Super Turbo Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Super Turbo for 22329
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Super Turbo Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Super Turbo for 22329
Wheel Base 155.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Dynomax Super Turbo Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Super Turbo for 22329
Wheel Base 159.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Dynomax Super Turbo Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
Super Turbo for 22329
Wheel Base 159.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Walker SoundFX Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
SoundFX Universal for 22329
Modifications and/or Additional Parts Required.
Wheel Base 135.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Walker SoundFX Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
SoundFX Universal for 22329
Modifications and/or Additional Parts Required.
Wheel Base 135.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Walker SoundFX Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
SoundFX Universal for 22329
Modifications and/or Additional Parts Required.
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Walker SoundFX Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
SoundFX Universal for 22329
Modifications and/or Additional Parts Required.
Wheel Base 155.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Walker SoundFX Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
SoundFX Universal for 22329
Modifications and/or Additional Parts Required.
Wheel Base 159.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Walker SoundFX Universal Muffler
If welded assembly, replace all required parts.
Regular Duty Muffler.
Optional
SoundFX Universal for 22329
Modifications and/or Additional Parts Required.
Wheel Base 159.5 In.

2 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 135.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV
Left (Driver) SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 135.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV
Left (Driver) SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 159.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV
Left (Driver) SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 159.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 135.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV
Right (Passenger) SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 135.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV
Right (Passenger) SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 159.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV
Right (Passenger) SoundFX Universal
Bracket May Be Required
Regular Duty Muffler
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 159.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Catalytic Converter
Limited Lifetime Warranty
If welded assembly, replace all required parts
Cab & Chassis
Wheel Base 135.5 In.

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Catalytic Converter
Limited Lifetime Warranty
If welded assembly, replace all required parts
Cab & Chassis
Wheel Base 135.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Catalytic Converter
Limited Lifetime Warranty
If welded assembly, replace all required parts
Cab & Chassis
Wheel Base 159.5 In.

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Catalytic Converter
Limited Lifetime Warranty
If welded assembly, replace all required parts
Cab & Chassis
Wheel Base 159.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
with Dual Outlets
with Single Catalytic Converter
Limited Lifetime Warranty
Wheel Base 131.5 In.

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
with Dual Outlets
with Single Catalytic Converter
Limited Lifetime Warranty
Wheel Base 131.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
5.7L V8 Gas OHV

Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
with Dual Outlets
with Single Catalytic Converter
Limited Lifetime Warranty
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
5.7L V8 Gas OHV Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
with Dual Outlets
with Single Catalytic Converter
Limited Lifetime Warranty
Wheel Base 155.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV Quiet-Flow SS
Premium
with 3 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV

1991 GMC K3500 equipped with
6.2L V8 Diesel OHV If welded assembly, replace all required parts

2 Per Vehicle