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1991 GMC K2500

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  2. Auto Parts
  3. Exhaust
  4. Mufflers
  5. Exhaust Muffler
  6. Walker 18133 for 1991 GMC K2500

Walker 18133 Exhaust Muffler
for 1991 GMC K2500

Walker 18133 Exhaust Muffler - 1991 GMC K2500
Walker 18133 Exhaust Muffler - 1991 GMC K2500 Image 1
Walker 18133 Exhaust Muffler - 1991 GMC K2500

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



On Sale:

$61.55

Availability:
2 in Stock
Warehouse: US-7
Quantity:

Product Information

Description:

UNIVERSAL TRU-FIT MUFFLER

Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Features and Benefits:

  • BUILT TO LAST -- Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FACTORY SOUND -- Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • GET MORE MILES FROM YOUR MUFFLER -- Designed and tested to extend muffler life
  • RESISTS CORROSION -- Aluminized steel construction and internal drainage system helps reduce corrosion

Specifications:

Body Height:
4.25 in.
Body Length:
23 in.
Body Material:
Steel
Body Width:
9.75 in.
Finish:
Aluminized
Grade Type:
Regular
Inlet 1 Inside Diameter:
3 in.
Inlet 1 Type:
Pipe Connection
Inlet Configuration:
Center
Inlet Inside Diameter:
3 in.
Inlet Quantity:
1
Inlet Type:
Pipe Connection
Muffler Type:
Combination
Outlet 1 Inside Diameter:
2.25 in.
Outlet 1 Type:
Pipe Connection
Outlet 2 Inside Diameter:
2.25 in.
Outlet 2 Type:
Pipe Connection
Outlet Configuration:
Offset
Outlet Inside Diameter:
2.25 in.
Outlet Quantity:
2
Outlet Type:
Pipe Connection
Overall Length:
28 in.
Reversible:
No
Shape:
Oval
Tunable:
No
Universal Or Specific Fit:
Universal
Country of Origin:
US

Walker 18133 Exhaust Muffler compatibility with your 1991 GMC K2500...

Last Updated: 12/24/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

1995

 

1994

 

1993

 

1992

 

1991

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
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.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
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

1995

 

1994

 

1993

 

1992

 

1991

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
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.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
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

1995

 

1994

 

1993

 

1992

 

1991

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Over 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1994

 

1993

 

1992

 

1991

 

1990

 

1994

 

1993

 

1992

 

1991

 

1990

 
GMC K2500

4.3L V6 Gas OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
with Dual Outlets
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.
 

GMC K2500



4.3L V6 Gas OHV SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
with Dual Outlets
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.

1 Per Vehicle

1994

 

1993

 

1992

 

1991

 

1990

 

1994

 

1993

 

1992

 

1991

 

1990

 
GMC K2500

4.3L V6 Gas OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
with Dual Outlets
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.
 

GMC K2500



4.3L V6 Gas OHV SoundFX Universal
Over 8500 (lb) GVW
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
with Dual Outlets
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
GMC K2500

4.3L V6 Gas OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.
 

GMC K2500



4.3L V6 Gas OHV SoundFX Universal
Over 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
GMC K2500

6.2L V8 Diesel OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: J
Wheel Base 155.5 In.
 

GMC K2500



6.2L V8 Diesel OHV SoundFX Universal
Over 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: J
Wheel Base 155.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
GMC K2500

6.2L V8 Diesel OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: J
Wheel Base 131.5 In.
 

GMC K2500



6.2L V8 Diesel OHV SoundFX Universal
Over 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: J
Wheel Base 131.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
GMC K2500

6.2L V8 Diesel OHV
1
 
SoundFX Universal
Over 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: J
Wheel Base 155.5 In.
 

GMC K2500



6.2L V8 Diesel OHV SoundFX Universal
Over 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: J
Wheel Base 155.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1993

 

1992

 

1991

 

1990

 

1989

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 141.5 In.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 141.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 131.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

5.7L V8 Gas OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.
 

GMC K2500



5.7L V8 Gas OHV SoundFX Universal
Below 8500 (lb) GVW
with 3 (in) Muffler Inlet
Requires 44461 Or 45344
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
Wheel Base 155.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

6.2L V8 Diesel OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: C
 

GMC K2500



6.2L V8 Diesel OHV SoundFX Universal
Below 8500 (lb) GVW
Replacement Requires Intermediate Pipe
with 3 (in) Muffler Inlet
Requires 35667 And Two 35564
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: C

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

6.2L V8 Diesel OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: C
Wheel Base 131.5 In.
 

GMC K2500



6.2L V8 Diesel OHV SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: C
Wheel Base 131.5 In.

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

6.2L V8 Diesel OHV
1
 
SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: C
Wheel Base 155.5 In.
 

GMC K2500



6.2L V8 Diesel OHV SoundFX Universal
Below 8500 (lb) GVW
with 2.5 (in) Muffler Inlet
Modifications and/or Additional Parts May Be Required for Installation
8th VIN Digit: C
Wheel Base 155.5 In.

1 Per Vehicle

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