Walker 18929 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 SoundFX Direct Fit

Walker 18929 Exhaust Muffler

Brand Walker 18929
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.25
Body Width 9
Inlet Quantity 1
Outlet Inside Diameter 2.25
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 28
Body Height 7
Body Length 24
Body Material Steel
Finish Aluminized
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 1.625
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Inside Diameter 2.25
Outlet 1 Type Pipe connection
Outlet Configuration Offset
Outlet Type Pipe connection
Product line SoundFX Direct Fit
Fits Ford and Mercury · 22 vehicles

Direct-fit design. Installs as a specific-fit exhaust muffler with no guesswork.

Aluminized steel. Helps resist corrosion for longer service life than low-carbon steel.

Mechanical interior joints. Spun-locked heads add durability and a quality finish.

Cross-references AP Exhaust 700335 for the same application. See all 1.

$79.35Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $79.35
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 SoundFX Direct Fit Muffler for Explorer and Mountaineer

Walker SoundFX Direct Fit muffler Part Number 18929 is a specific-fit exhaust muffler for select 2002-2005 Ford Explorer and 2002-2005 Mercury Mountaineer applications. It is built with aluminized steel for improved service life versus low-carbon steel and is shaped for a direct replacement on vehicles with the listed exhaust configuration.

Key Features

  • Specific-fit exhaust muffler for select Ford Explorer and Mercury Mountaineer models
  • Oval combination muffler design with 2.25-inch inlet and 2.25-inch outlet
  • Offset inlet and offset outlet configuration for direct-fit routing
  • 100% aluminized steel body and finish for corrosion resistance
  • Mechanical interior joints and spun-locked heads for added durability
  • Body dimensions: 24-inch body length, 9-inch body width, 7-inch body height
  • Overall length: 28 inches

Product Details

Walker SoundFX Direct Fit is a product line focused on replacement mufflers that match the original exhaust layout while maintaining a clean appearance and controlled acoustics. Part Number 18929 uses a steel body with an aluminized finish and a combination muffler construction to support long-term exhaust service in everyday driving conditions. This part cross-references AP Exhaust 700335 for the same application.

Compatible With 2002-2005 Ford Explorer, N/A, and 2002-2005 Mercury Mountaineer, N/A. It also fits 2002-2003 Ford Explorer, N/A, without Sport Package; if the vehicle uses a welded assembly, replace all required parts. Walker 18929 is a direct-fit option for owners searching for a 2002-2005 Ford Explorer muffler replacement or a 2002-2005 Mercury Mountaineer exhaust muffler with the correct offset pipe connection.

Common Issues This Part Can Address

  • Rust or corrosion in the original muffler body
  • Exhaust noise from a damaged or leaking muffler
  • Poor fitment after prior exhaust repairs
  • Restricted exhaust flow caused by internal muffler deterioration
  • Need for a replacement muffler that matches the factory-style layout

Installation Notes and Tips

Verify inlet and outlet size, offset configuration, and overall length before installation. This muffler uses pipe connections and is not reversible or tunable. For welded exhaust assemblies, replace all required related parts to restore proper alignment and sealing. Confirm vehicle application details, especially the 2002-2003 Ford Explorer without Sport Package note, before ordering.

Quality Assurance

Walker builds this muffler with aluminized steel, mechanical interior joints, and spun-locked heads to support durability in exhaust service. The SoundFX Direct Fit line is engineered for direct replacement use on the listed Ford Explorer and Mercury Mountaineer applications.

Related reading

This part fits 22 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2005FordExplorer—4.0LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2005FordExplorer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2005MercuryMountaineer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2005MercuryMountaineer—4.0LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2004FordExplorer—4.0LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2004FordExplorer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2004MercuryMountaineer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2004MercuryMountaineer—4.0LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2003FordExplorer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2003FordExplorerLimited4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2003FordExplorerXLT4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2003FordExplorerXLS4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2003FordExplorerEddie Bauer4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2003MercuryMountaineer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2003MercuryMountaineer—4.0LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2002FordExplorer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2002FordExplorerLimited4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2002FordExplorerXLT4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2002FordExplorerXLS4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2002FordExplorerEddie Bauer4.0LV6N/Awithout Sport Package; If welded assembly, replace all required parts; SoundFX Direct Fit
2002MercuryMountaineer—4.6LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2002MercuryMountaineer—4.0LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 700335