Walker 18931 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 SoundFX Direct Fit

Walker 18931 Exhaust Muffler

Brand Walker 18931
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Body Width 11
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 63.375
Body Height 5.5
Body Length 20
Body Material Steel
Finish Aluminized
Inlet 1 Type 2 bolt welded flange
Inlet Configuration Center
Inlet Type 2 bolt welded flange
Muffler Type Combination
Outlet 1 Outside Diameter 2
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Outside Diameter 2
Outlet Type Tip
Product line SoundFX Direct Fit
Fits Chevrolet and Suzuki · 14 vehicles

Direct-fit design. Built for specific applications with an OE-style exhaust replacement layout.

Aluminized steel. Helps extend service life compared with low-carbon steel construction.

SoundFX line. Focused on quality appearance and controlled exhaust acoustics.

Cross-references AP Exhaust 44846, AP Exhaust 700401 and 283-093 for the same application. See all 3.

$151.23Free shipping
Out of stock
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 β€” free returns if it doesn't
Step 2 — Quantity
Order total $151.23
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

Overview

Walker SoundFX direct-fit muffler 18931 is built for specific applications and uses a combination muffler design with an oval steel body. It is made with aluminized steel for improved service life versus low-carbon steel and is shaped for a clean, OE-style exhaust replacement.

Fits 1999-2003 Chevrolet Tracker, N/A. Fits 1999-2003 Suzuki Vitara, N/A. This part number is 18931.

Key Features

  • Specific-fit exhaust muffler for direct application matching.
  • 100% aluminized steel construction for added corrosion resistance.
  • Mechanical interior joints and spun-locked heads for added durability.
  • Oval body design with a 2-inch inlet and 2-inch outlet.
  • Combination muffler layout for balanced exhaust flow and sound control.

Detailed Description

Walker SoundFX direct-fit muffler 18931 is engineered for buyers replacing a worn exhaust muffler with a part that follows the original application layout. The aluminized finish and steel body help extend service life, while the welded flange inlet and tip-style outlet support a secure exhaust connection. The SoundFX Direct Fit line focuses on a clean appearance and controlled acoustics, making it a practical choice for Chevrolet Tracker and Suzuki Vitara exhaust service. Part number 18931 is also referenced by AP Exhaust 44846 and 700401 for the same application.

Common Issues It Can Address

  • Exhaust noise from a damaged or rusted muffler.
  • Corrosion-related muffler failure.
  • Restricted exhaust flow caused by internal deterioration.
  • Fitment problems when replacing a specific-application muffler.

Installation Notes

Verify inlet and outlet configuration, overall length, and body dimensions before installation. This muffler uses a 2-bolt welded flange inlet and a tip-style outlet, so matching the existing exhaust layout is important for proper fitment. Confirm the vehicle application and exhaust routing before final assembly.

Quality Assurance

Walker SoundFX direct-fit mufflers are built with mechanical interior joints and spun-locked heads for durability, and the aluminized steel construction is selected for longer service life than low-carbon steel.

Related reading

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModel# DoorsLitersCylindersNotes
2003ChevroletTracker2 Door2.0LL4SoundFX Direct Fit
2003SuzukiVitara2 Door2.0LL4SoundFX Direct Fit
2002ChevroletTracker2 Door2.0LL4SoundFX Direct Fit
2002SuzukiVitara2 Door2.0LL4SoundFX Direct Fit
2001ChevroletTracker2 Door2.0LL4SoundFX Direct Fit
2001SuzukiVitara2 Door2.0LL4SoundFX Direct Fit
2000ChevroletTracker2 Door2.0LL4SoundFX Direct Fit
2000ChevroletTracker—1.6LL4SoundFX Direct Fit
2000SuzukiVitara2 Door2.0LL4SoundFX Direct Fit
2000SuzukiVitara2 Door1.6LL4SoundFX Direct Fit
1999ChevroletTracker2 Door2.0LL4SoundFX Direct Fit
1999ChevroletTracker—1.6LL4SoundFX Direct Fit
1999SuzukiVitara2 Door2.0LL4SoundFX Direct Fit
1999SuzukiVitara2 Door1.6LL4SoundFX Direct Fit
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 44846AP Exhaust — 700401283-093