Walker 21541 Exhaust Muffler
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Walker
 Quiet-Flow SS

Walker 21541 Exhaust Muffler

Brand Walker 21541
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.5
Body Width 9
Inlet Quantity 1
Outlet Inside Diameter 2.5
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 32
Body Height 7
Body Length 28
Body Material Stainless steel
Finish Aluminized
Inlet 1 Inside Diameter 2.5
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 1.625
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Inside Diameter 2.5
Outlet 1 Type Pipe connection
Outlet Configuration Offset
Outlet Type Pipe connection
Product line Quiet-Flow SS
Fits Ford · 33 vehicles

100% stainless-steel construction. Resists corrosion for long-term exhaust durability.

Precision fit. Helps make installation straightforward with OE-style sound.

Superior flow. Supports efficient exhaust movement through the muffler.

Cross-references Anchor 2463 and AP Exhaust 700456 for the same application. See all 2.

$139.68Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $139.68
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Walker Quiet-Flow SS Muffler for F-150

Walker Quiet-Flow SS muffler Part Number 21541 is a specific-fit exhaust muffler for select 2004-2008 Ford F-150 applications. It uses 100% stainless-steel construction for the body, with an oval combination design that supports OE-style sound and steady exhaust flow.

The Quiet-Flow SS product line focuses on precision fit and a factory-like sound profile for domestic and import vehicles. For F-150 owners looking for a direct replacement muffler, 21541 is built around the original exhaust layout and pipe connection dimensions.

Key Features

  • Specific-fit exhaust muffler for select Ford F-150 models
  • 100% stainless-steel body construction
  • Oval combination muffler design
  • 2.5 in. inlet and 2.5 in. outlet pipe connections
  • Offset inlet and offset outlet configuration
  • Aluminized finish
  • Walker Quiet-Flow SS line with OE-style sound characteristics
  • Part Number 21541

Detailed Description

Walker 21541 is an exhaust muffler engineered for 2004-2008 Ford F-150 trucks with a specific-fit application. The muffler measures 32 inches overall, with a 28-inch body length, 9-inch body width, and 7-inch body height. Its oval shape and combination muffler type support a direct replacement layout for vehicles that use 2.5-inch pipe connections.

This Quiet-Flow SS muffler is part of Walker’s stainless-steel muffler line, built to deliver consistent exhaust routing and a controlled sound profile. It is a practical choice for Ford F-150 exhaust repair or replacement when the original muffler is worn, corroded, or no longer maintaining the desired sound level. This part cross-references Anchor 2463 and AP Exhaust 700456 for the same application.

Common Issues This Muffler Can Address

  • Rust or corrosion in the original muffler body
  • Exhaust noise from a damaged or leaking muffler
  • Reduced exhaust flow caused by internal muffler deterioration
  • Factory muffler replacement needs on 2004-2008 Ford F-150 trucks
  • Fitment issues when replacing a worn OE-style muffler with the correct offset configuration

Installation Notes and Tips

Fits 2004-2008 Ford F-150, N/A. Verify inlet and outlet diameter, offset configuration, and overall muffler dimensions before installation. This muffler uses pipe connections, so the existing exhaust system should be inspected for corrosion, deformation, or welded-assembly damage before replacement. If the system is welded, replace all required related parts as needed to restore proper alignment and sealing.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with stainless-steel construction and are positioned as a precision-fit replacement option for a broad range of domestic and import vehicles. For this application, the fitment notes list Premium and Limited Lifetime Warranty coverage.

Related reading

This part fits 33 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeLitersCylindersWheel BasePositionNotes
2008FordF-150——5.4LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordF-150——5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordF-150——4.2LV6126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordF-150—4WD4.6LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordF-150—4WD4.6LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150FX4—5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150XLT—5.4LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150FX4—5.4LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150XLT—5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150XL—5.4LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150——4.2LV6126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150—4WD4.6LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordF-150—4WD4.6LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150FX4—5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150XLT—5.4LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150FX4—5.4LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150XLT—5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150——4.2LV6126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150—4WD4.6LV8126.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordF-150—4WD4.6LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordF-150——5.4LV8126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordF-150——4.2LV6126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordF-150——5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordF-150—4WD4.6LV8126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordF-150—4WD4.6LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150XLT—5.4LV8126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150XLT—5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150FX4—5.4LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150FX4—5.4LV8126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150XLT4WD4.6LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150XLT4WD4.6LV8126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150STX4WD4.6LV8132.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordF-150STX4WD4.6LV8126.1"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2463AP Exhaust — 700456