Walker 18236 Exhaust Muffler - Left
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Walker
 SoundFX Direct Fit

Walker 18236 Exhaust Muffler - Left

Brand Walker 18236
Position Left
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.25
Body Width 9.75
Inlet Quantity 1
Outlet Inside Diameter 2.25
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 20.5
Body Height 4.25
Body Length 17
Body Material Steel
Finish Aluminized
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 2.875
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 · 46 vehicles

Direct-fit design. Installs as a specific-fit exhaust muffler with pipe connections.

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

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

Cross-references 700096 for the same application. See all 1.

$61.27Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $61.27
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 Mustang

Walker SoundFX Direct Fit muffler Part Number 18236 is a specific-fit exhaust muffler built for select Ford Mustang and Mercury Capri applications. It uses 100% aluminized steel for improved service life versus low-carbon steel and is shaped for a direct replacement on the left side of dual-exhaust systems.

Key Features

  • Specific-fit exhaust muffler for confirmed vehicle applications
  • Oval body shape with a combination muffler design
  • 2.25-inch inlet and 2.25-inch outlet with pipe connection ends
  • Offset inlet and offset outlet configuration
  • Aluminized steel body and finish for corrosion resistance
  • Mechanical interior joints and spun-locked heads for added durability
  • Walker SoundFX Direct Fit line for OE-style replacement fitment

Product Details

This Walker SoundFX muffler is engineered for direct-fit replacement on select 1984-1993 Ford Mustang and 1984-1986 Mercury Capri models, with fitment listed for the left position on dual-exhaust vehicles. The oval steel body measures 20.5 inches overall, with a 17-inch body length, 9.75-inch body width, and 4.25-inch body height. Its aluminized finish helps resist rust and wear in everyday exhaust service, while the offset inlet and outlet layout supports the original routing used on the listed applications. Part Number 18236 is also cross-referenced to 700096 for the same application.

The SoundFX Direct Fit product line focuses on replacement mufflers that match vehicle-specific dimensions and connection points, making it a practical choice when servicing a Ford Mustang exhaust system or a Mercury Capri exhaust system that requires a left-side muffler with dual-exhaust and heat-shield-related fitment notes.

Common Problems It Can Address

  • Exhaust noise from a worn or rusted muffler
  • Corrosion damage in the muffler body or seams
  • Poor fitment from a universal replacement muffler
  • Loss of original exhaust routing on dual-exhaust vehicles
  • Service replacement needs on left-side Mustang or Capri exhaust systems

Installation Notes and Tips

Verify the vehicle year, engine/exhaust configuration, and position before installation. This part is listed for left-side applications on specific Ford Mustang and Mercury Capri models, including vehicles with dual exhaust and heat shield notes. Some welded assemblies require replacement of all required parts, and certain listings note that modifications and/or additional parts may be required. Confirm inlet and outlet size, offset orientation, and body dimensions against the original muffler before beginning service.

Quality Assurance

Walker builds this muffler with aluminized steel, mechanical interior joints, and spun-locked heads to support durability in exhaust service. Part Number 18236 is a direct-fit replacement for the listed Ford Mustang and Mercury Capri applications and is engineered to match the specified connection style and dimensions.

Related reading

This part fits 46 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
1993FordMustangSVT Cobra R5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1993FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1993FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1993FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1993FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1993FordMustangSVT Cobra R5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1992FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1992FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1992FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1992FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1991FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1991FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1991FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1991FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1990FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1990FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1990FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1990FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1989FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1989FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1989FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1989FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1988FordMustangLX5.0LV8LeftBefore 05/1988; with Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1988FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1988FordMustangLX5.0LV8N/ABefore 05/1988; with Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1988FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1988FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; After 05/1988; If welded assembly, replace all required parts; SoundFX Direct Fit
1988FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; After 05/1988; If welded assembly, replace all required parts; SoundFX Direct Fit
1987FordMustangLX5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1987FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit
1987FordMustangLX5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1987FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1986FordMustang—5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1986FordMustang—5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1986FordMustangSVO2.3LL4Leftwith Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1986FordMustangSVO2.3LL4Leftwith Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1986MercuryCapri—5.0LV8LeftIf welded assembly, replace all required parts; SoundFX Direct Fit
1986MercuryCapri—5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1985FordMustangGT5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1985FordMustangGT5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1985MercuryCapri—5.0LV8LeftIf welded assembly, replace all required parts; SoundFX Direct Fit
1985MercuryCapri—5.0LV8Leftwith Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1984FordMustang—5.0LV8Leftwith Dual Exhaust; with Welded Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1984FordMustang—5.0LV8Leftwith Dual Exhaust; with Heat Shield; If welded assembly, replace all required parts; SoundFX Direct Fit
1984MercuryCapri—5.0LV8LeftIf welded assembly, replace all required parts; SoundFX Direct Fit
1984MercuryCapri—5.0LV8Leftwith Welded Heat Shield; If 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.
700096