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Walker 18924 Exhaust Muffler
| Brand | Walker 18924 |
|---|---|
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Body Width | 9 |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 84.5 |
| Body Height | 7 |
| Body Length | 21 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet 1 Type | 2 bolt welded flange |
| Inlet Configuration | Offset |
| Inlet Offset | 2 |
| 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 | Nissan · 8 vehicles |
Direct-fit design. Installs as a specific replacement with a straightforward fit.
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 AP Exhaust 38687, AP Exhaust 44845 and AP Exhaust 700386 for the same application. See all 4.
Walker SoundFX Direct Fit Muffler for Frontier
Walker SoundFX Direct Fit muffler Part Number 18924 is a specific-fit exhaust muffler for select Nissan Frontier applications. It combines an oval steel body with an aluminized finish and direct-fit inlet and outlet configuration for a factory-style replacement on 1999-2002 Frontier models.
Key Features
- Specific-fit exhaust muffler for select Nissan Frontier applications
- Oval muffler body with 9-inch body width, 7-inch body height, and 21-inch body length
- 100% aluminized steel construction for improved service life versus low-carbon steel
- Mechanical interior joints and spun-locked heads for added durability
- Single inlet and single outlet layout with 2-inch outlet outside diameter
- Offset inlet and offset outlet configuration for direct-fit installation
- 2-bolt welded flange inlet connection
- Walker SoundFX Direct Fit product line focused on quality appearance and controlled exhaust acoustics
Product Details
Walker Part Number 18924 is built as a combination-style exhaust muffler for Nissan Frontier trucks. The aluminized steel body helps resist corrosion better than low-carbon steel, while the direct-fit design supports a clean replacement for the original exhaust layout. This muffler is listed for 1999-2002 Nissan Frontier models, including 1999-2000 Frontier with California Emission System after 03/1999, 1999-2000 Frontier with Federal Emission System after 03/1999, and 2001-2002 Frontier. This part cross-references AP Exhaust 38687 for the same application.
Common Problems It Can Address
- Rust-through or corrosion in the original muffler body
- Exhaust noise caused by a damaged internal muffler structure
- Fitment issues from a worn or previously repaired exhaust section
- Reduced exhaust system integrity at the inlet flange connection
- Replacement needs on a Nissan Frontier exhaust system after factory muffler wear
Installation Notes and Tips
Verify the vehicle’s emission system and build date before ordering, since fitment differs for 1999-2000 Frontier models built after 03/1999. Confirm the inlet flange style, offset configuration, and 2-inch outlet dimensions against the existing exhaust before installation. Professional exhaust installation is recommended to ensure proper alignment and sealing on the Frontier exhaust system.
Quality Assurance
Walker SoundFX Direct Fit mufflers use aluminized steel, mechanical interior joints, and spun-locked heads to support durability and consistent fitment. Part Number 18924 is engineered for direct replacement use on listed Nissan Frontier applications.
| Year | Make | Model | Submodel | Liters | Cylinders | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2002 | Nissan | Frontier | SE | 3.3L | V6 | 116.1" | N/A | SoundFX Direct Fit |
| 2002 | Nissan | Frontier | XE | 3.3L | V6 | 116.1" | N/A | SoundFX Direct Fit |
| 2001 | Nissan | Frontier | SE | 3.3L | V6 | — | N/A | SoundFX Direct Fit |
| 2001 | Nissan | Frontier | XE | 3.3L | V6 | — | N/A | SoundFX Direct Fit |
| 2000 | Nissan | Frontier | — | 3.3L | V6 | — | N/A | with California Emission System; After 03/1999; SoundFX Direct Fit |
| 2000 | Nissan | Frontier | — | 3.3L | V6 | — | N/A | with Federal Emission System; After 03/1999; SoundFX Direct Fit |
| 1999 | Nissan | Frontier | — | 3.3L | V6 | — | N/A | with California Emission System; After 03/1999; SoundFX Direct Fit |
| 1999 | Nissan | Frontier | — | 3.3L | V6 | — | N/A | with Federal Emission System; After 03/1999; SoundFX Direct Fit |
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