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Walker 21400 Exhaust Muffler

Walker 21400 Exhaust Muffler
Walker 21400 Exhaust Muffler Image 1
Walker 21400 Exhaust Muffler

Walker
Brand:Walker
Part Number: 21400
UPC: 086387214001
Weight: 18 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

QUIET-FLOW3 MUFFLER

The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

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
  • BUY WITH CONFIDENCE -- Comes with Walker's limited lifetime warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
  • CORROSION RESISTANT STAINLESS STEEL -- The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on
  • EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn't require specialized fabrication and/or welding
  • PREMIUM ACOUSTIC CONTROL -- OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes

Specifications:

Body Height:
7 in.
Body Length:
24 in.
Body Material:
Stainless Steel
Body Width:
9 in.
Finish:
Aluminized
Grade Type:
Regular
Inlet 1 Inside Diameter:
2.5 in.
Inlet 1 Type:
Pipe Connection
Inlet 2 Inside Diameter:
2.5 in.
Inlet 2 Type:
Pipe Connection
Inlet Configuration:
Offset
Inlet Inside Diameter:
2.5 in.
Inlet Offset:
2.625
Inlet Quantity:
2
Inlet Type:
Pipe Connection
Muffler Type:
Combination
Outlet 1 Outside Diameter:
2.5 in.
Outlet 1 Type:
Pipe Connection
Outlet Configuration:
Offset
Outlet Outside Diameter:
2.5 in.
Outlet Quantity:
1
Outlet Type:
Pipe Connection
Overall Length:
29 in.
Reversible:
No
Shape:
Oval
Tunable:
No
Universal Or Specific Fit:
Specific
Country of Origin:
US

Select a vehicle to narrow Walker 21400 Exhaust Muffler fitment info!

Last Updated: 12/24/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

Chevrolet C2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet C2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet C2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

Chevrolet C2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet C2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet C2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

Chevrolet C2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet C2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet C2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet C3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet C3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet C3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet C3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet C3500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet C3500



5.7L V8 CNG OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet C3500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet C3500



5.7L V8 CNG OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet K2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

Chevrolet K2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
Chevrolet K2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet K2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet K2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet K2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet K2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

Chevrolet K2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
Chevrolet K2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet K2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
Chevrolet K2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet K2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

Chevrolet K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
Chevrolet K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

Chevrolet K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
GMC C2500

5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

GMC C2500



5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
GMC C2500

5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

GMC C2500



5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
GMC C2500

5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

GMC C2500



5.7L V8 CNG OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
GMC C3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

GMC C3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
GMC C3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

GMC C3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
GMC C3500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

GMC C3500



5.7L V8 CNG OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
GMC C3500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

GMC C3500



5.7L V8 CNG OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
GMC K2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

GMC K2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
GMC K2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

GMC K2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
GMC K2500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

GMC K2500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
GMC K2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.
 

GMC K2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
Wheel Base 141.5 In.

1 Per Vehicle
GMC K2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

GMC K2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle
GMC K2500

5.7L V8 CNG OHV
1
 
Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

GMC K2500



5.7L V8 CNG OHV Quiet-Flow SS
Over 8500 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
GMC K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.
 

GMC K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 155.5 In.

1 Per Vehicle
GMC K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.
 

GMC K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Quiet-Flow SS
Below 15000 (lb) GVW
Premium
with Dual Inlets
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 131.5 In.

1 Per Vehicle