Walker 18986 Exhaust Muffler
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Walker
 SoundFX Direct Fit

Walker 18986 Exhaust Muffler

Brand Walker 18986
Muffler Type Reflection
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.5
Body Width 11
Inlet Quantity 1
Outlet Inside Diameter 2.25
Outlet Quantity 1
Reversible Yes
Tunable No
Overall Length 32
Body Height 5.5
Body Length 27
Body Material Steel
Finish Aluminized
Inlet 1 Inside Diameter 2.5
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 3.5
Inlet Type Pipe connection
Outlet 1 Inside Diameter 2.25
Outlet 1 Type Pipe connection
Outlet Configuration Center
Outlet Type Pipe connection
Product line SoundFX Direct Fit
Fits Jeep · 31 vehicles

Direct-fit muffler. Specific fit and reversible design simplify installation.

Aluminized steel. Helps extend service life versus low-carbon steel.

Reflection muffler. Delivers favorable acoustics with a quality appearance.

$79.75Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $79.75
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 Jeep

Walker SoundFX Direct Fit muffler Part Number 18986 is a specific-fit exhaust muffler built for select Jeep applications. It uses an oval steel body with an aluminized finish to help resist corrosion and maintain a clean appearance, while the reflection-style internal design is aimed at controlled exhaust acoustics.

Compatible with 2005-2010 Jeep Grand Cherokee and 2006-2010 Jeep Commander, this Walker muffler is sized for direct replacement service on vehicles that use a 2.5-inch inlet and 2.25-inch outlet configuration. The SoundFX Direct Fit line focuses on OE-style fitment and durable construction for repair work on the exhaust system.

Key Features

  • Walker SoundFX Direct Fit Part Number 18986
  • Specific-fit exhaust muffler for select Jeep models
  • Reflection muffler type with oval body shape
  • 100% aluminized steel construction for longer service life than low-carbon steel
  • 2.5-inch inlet, 2.25-inch outlet
  • Offset inlet and center outlet configuration
  • Reversible design for installation flexibility
  • Mechanical interior joints and spun-locked heads for added durability

Product Details

Walker SoundFX Direct Fit 18986 is engineered as a replacement muffler for Jeep Grand Cherokee and Jeep Commander exhaust service. The 32-inch overall length, 27-inch body length, 11-inch body width, and 5.5-inch body height provide a direct-fit footprint for the listed applications. The aluminized steel body and pipe-connection inlet and outlet help support a clean, serviceable exhaust repair.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Repair Uses

  • Restores a damaged or rusted muffler on a Jeep Grand Cherokee or Jeep Commander
  • Addresses exhaust noise caused by internal muffler wear
  • Replaces a leaking muffler body or failed pipe connection
  • Helps correct exhaust system corrosion at the rear section
  • Supports OE-style exhaust repair when the original muffler is no longer serviceable

Installation Notes

Fits 2005-2010 Jeep Grand Cherokee, N/A. Fits 2006-2010 Jeep Commander, N/A. If the vehicle uses a welded exhaust assembly, replace all required related parts during service. Verify inlet and outlet diameters, offset and center alignment, and overall muffler dimensions before installation. Part Number 18986 is reversible, which can help with orientation during exhaust system replacement.

Quality Assurance

Walker SoundFX Direct Fit mufflers use aluminized steel construction, mechanical interior joints, and spun-locked heads to support durability in exhaust service. The SoundFX Direct Fit line is built for direct replacement applications with attention to fit, appearance, and controlled acoustics.

Related reading

This part fits 31 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2010JeepCommander5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2010JeepCommander3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2010JeepGrand Cherokee3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2010JeepGrand Cherokee5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2009JeepCommander4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2009JeepCommander5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2009JeepCommander3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2009JeepGrand Cherokee3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2009JeepGrand Cherokee4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2009JeepGrand Cherokee5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2008JeepCommander4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2008JeepCommander5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2008JeepCommander3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2008JeepGrand Cherokee3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2008JeepGrand Cherokee4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2008JeepGrand Cherokee5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2007JeepCommander4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2007JeepCommander5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2007JeepCommander3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2007JeepGrand Cherokee3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2007JeepGrand Cherokee4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2007JeepGrand Cherokee5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2006JeepCommander4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2006JeepCommander5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2006JeepCommander3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2006JeepGrand Cherokee3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2006JeepGrand Cherokee4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2006JeepGrand Cherokee5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2005JeepGrand Cherokee3.7LV6N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2005JeepGrand Cherokee4.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
2005JeepGrand Cherokee5.7LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit