Walker 18979 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 SoundFX Direct Fit

Walker 18979 Exhaust Muffler

Brand Walker 18979
Muffler Type Reflection
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.25
Body Width 8.81
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 35.5
Body Height 4.25
Body Length 22
Body Material Steel
Finish Aluminized
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Center
Inlet Type Pipe connection
Outlet 1 Type 2 bolt welded flange
Outlet Configuration Offset
Outlet Type 2 bolt welded flange
Product line SoundFX Direct Fit
Fits Ford, Mazda, and Mercury · 23 vehicles

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

Aluminized steel. Helps resist corrosion for longer service life.

Reflection muffler. Delivers favorable acoustics with a quality appearance.

Cross-references AP Exhaust 700458 and NGK 2411 for the same application. See all 2.

$84.75Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $84.75
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Muffler options

Walker SoundFX Direct Fit Muffler for Ford, Mazda, Mercury

Walker SoundFX Direct Fit muffler Part Number 18979 is a specific-fit exhaust muffler built for select Ford Escape, Mazda Tribute, and Mercury Mariner applications. It uses aluminized steel construction and a reflection-style internal design to support controlled exhaust tone with a direct-fit layout.

Key Features

  • Specific-fit exhaust muffler for confirmed vehicle applications
  • Reflection muffler type for tuned exhaust acoustics
  • Oval steel body with aluminized finish for added corrosion resistance
  • 100% aluminized steel construction for longer service life than low-carbon steel
  • Mechanical interior joints and spun-locked heads for added durability
  • Center inlet with offset outlet and 2-bolt welded flange outlet connection
  • Walker SoundFX Direct Fit line for OE-style replacement fitment

Detailed Description

Walker SoundFX Direct Fit Part Number 18979 is engineered as a direct replacement exhaust muffler for 2005-2008 Ford Escape, 2005-2008 Mercury Mariner, and 2005-2008 Mazda Tribute applications, with additional coverage for 2005-2006 Mazda Tribute and 2008 Mazda Tribute. The oval body measures 35.5 inches overall, with a 22-inch body length, 8.81-inch body width, and 4.25-inch body height. It features a 2.25-inch inlet inside diameter, a center inlet configuration, and an offset outlet with a 2-bolt welded flange connection. The aluminized steel body is built for durability and a clean replacement appearance, while the internal construction supports consistent exhaust flow and sound control. This part cross-references AP Exhaust 700458 and NGK 2411 for the same application.

Common Issues This Muffler Can Address

  • Exhaust noise from a worn or rusted muffler
  • Corrosion damage to the original muffler body
  • Failed flange connection at the outlet side
  • Loss of factory-style exhaust tone control
  • Replacement needs after exhaust system deterioration

Installation Notes and Tips

Verify inlet and outlet configuration, flange style, and overall dimensions before installation. This muffler is not reversible and is not tunable, so orientation must match the vehicle exhaust layout. Confirm fitment for your specific Ford Escape, Mazda Tribute, or Mercury Mariner year before ordering, and compare the existing exhaust routing to the center-inlet, offset-outlet design.

Quality Assurance

Walker SoundFX Direct Fit mufflers use aluminized steel construction, mechanical interior joints, and spun-locked heads to support durability in everyday exhaust service. The product line is focused on direct-fit replacement parts with OE-style appearance and controlled acoustics.

Related reading

This part fits 23 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2008FordEscape—3.0LV6N/ASoundFX Direct Fit
2008FordEscape—2.3LL4N/ASoundFX Direct Fit
2008MazdaTribute—3.0LV6N/ASoundFX Direct Fit
2008MazdaTributeHybrid2.3LL4N/ASoundFX Direct Fit
2008MazdaTributei2.3LL4N/ASoundFX Direct Fit
2008MercuryMariner—3.0LV6N/ASoundFX Direct Fit
2008MercuryMariner—2.3LL4N/ASoundFX Direct Fit
2007FordEscape—3.0LV6N/ASoundFX Direct Fit
2007FordEscape—2.3LL4N/ASoundFX Direct Fit
2007MercuryMariner—3.0LV6N/ASoundFX Direct Fit
2007MercuryMariner—2.3LL4N/ASoundFX Direct Fit
2006FordEscape—3.0LV6N/ASoundFX Direct Fit
2006FordEscape—2.3LL4N/ASoundFX Direct Fit
2006MazdaTribute—2.3LL4N/ASoundFX Direct Fit
2006MazdaTribute—3.0LV6N/ASoundFX Direct Fit
2006MercuryMariner—3.0LV6N/ASoundFX Direct Fit
2006MercuryMariner—2.3LL4N/ASoundFX Direct Fit
2005FordEscape—3.0LV6N/ASoundFX Direct Fit
2005FordEscape—2.3LL4N/ASoundFX Direct Fit
2005MazdaTribute—2.3LL4N/ASoundFX Direct Fit
2005MazdaTribute—3.0LV6N/ASoundFX Direct Fit
2005MercuryMariner—3.0LV6N/ASoundFX Direct Fit
2005MercuryMariner—2.3LL4N/ASoundFX Direct Fit
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 700458NGK — 2411