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  6. Walker 21437

Walker 21437 Exhaust Muffler

Walker 21437 Exhaust Muffler
Walker 21437 Exhaust Muffler Image 1
Walker 21437 Exhaust Muffler

Walker
Brand:Walker
Part Number: 21437
UPC: 086387214377
Weight: 17.5 lbs
Condition:New



On Sale:

$159.01

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

Product Information

Description:

MUFFLER-QUIET-FLOW3

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:
1.625
Inlet Quantity:
2
Inlet Type:
Pipe Connection
Muffler Type:
Combination
Outlet 1 Inside Diameter:
2.75 in.
Outlet 1 Type:
Pipe Connection
Outlet Configuration:
Offset
Outlet Inside Diameter:
2.75 in.
Outlet Quantity:
1
Outlet Type:
Pipe Connection
Overall Length:
28 in.
Reversible:
No
Shape:
Oval
Tunable:
No
Universal Or Specific Fit:
Specific
Country of Origin:
US

Select a vehicle to narrow Walker 21437 Exhaust Muffler fitment info!

Last Updated: 12/24/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

2002

 

2002

 
Chevrolet Silverado 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.

1 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 143.5 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 143.5 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.
 

GMC Sierra 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.
 

GMC Sierra 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41974 to connect with OE Converter Pipe
Wheel Base 133.0 In.

1 Per Vehicle

2000

 

1999

 

2000

 

1999

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 143.5 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
with 2.5 (in) Muffler Inlet
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
with Small Diameter Muffler
Use Reducer Bushing 41965 to connect with OE Converter Pipe
Wheel Base 143.5 In.

1 Per Vehicle