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Walker 18828 Exhaust Muffler - Left
Walker SoundFX Direct Fit Muffler for Cadillac DeVille
Walker SoundFX Direct Fit muffler Part Number 18828 is a specific-fit exhaust muffler built for 1996-1999 Cadillac DeVille left-side applications. It uses an oval steel body with an aluminized finish to support longer service life than low-carbon steel while maintaining a clean OE-style appearance and controlled exhaust acoustics.
Key Features
- Specific-fit exhaust muffler for 1996-1999 Cadillac DeVille, left
- 2-inch inlet and 2.5-inch outlet with offset pipe connection layout
- Oval muffler body with 11-inch body width and 5.5-inch body height
- Aluminized steel construction for improved corrosion resistance
- Mechanical interior joints and spun-locked heads for added durability
- Combination muffler design for balanced exhaust flow and sound control
- Walker SoundFX Direct Fit line focuses on OE-style fit and acoustics
Product Details
Walker SoundFX Direct Fit Part Number 18828 is engineered for the left side of the Cadillac DeVille from 1996 through 1999. The muffler features a 39.75-inch overall length, a 20-inch body length, and offset inlet and outlet configurations to match the specified application. Its aluminized steel body is selected for service life and appearance, while the internal construction supports durability under normal exhaust system conditions. This part cross-references AP Exhaust 700185 for the same application.
Common Exhaust Issues It Can Address
- Excessive exhaust noise from a worn or rusted muffler
- Corrosion-related muffler failure on the left-side exhaust path
- Reduced exhaust system integrity caused by damaged internal muffler components
- Poor fitment when replacing a direct-fit Cadillac DeVille muffler
- Visible deterioration of the muffler body or outlet tip area
Installation Notes
Fits 1996-1999 Cadillac DeVille, left. Verify inlet and outlet diameters, offset configuration, and overall dimensions before installation. If the vehicle uses a welded assembly, replace all required related exhaust parts during service to maintain proper alignment and sealing. Part Number 18828 is intended for direct-fit replacement on the listed application.
Quality Assurance
Walker SoundFX Direct Fit mufflers are built with 100% aluminized steel, mechanical interior joints, and spun-locked heads to support durability and consistent fit. The SoundFX Direct Fit product line is positioned for replacement applications where OE-style appearance and controlled exhaust sound are important.
| Brand | Walker |
|---|---|
| Part Number | 18828 |
| Position | SoundFX Direct Fit, Left |
| Inlet Outside Diameter | 2 |
| Outlet Outside Diameter | 2.5 |
| 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 | 39.75 |
| Body Height | 5.5 |
| Body Length | 20 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet 1 Outside Diameter | 2 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Type | Pipe connection |
| Muffler Type | Combination |
| Outlet 1 Outside Diameter | 2.5 |
| Outlet 1 Type | Tip |
| Outlet Configuration | Offset |
| Outlet Type | Tip |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1999 | Cadillac | DeVille | Concours | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1999 | Cadillac | DeVille | Base | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1998 | Cadillac | DeVille | Concours | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1998 | Cadillac | DeVille | Base | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1997 | Cadillac | DeVille | Concours | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1997 | Cadillac | DeVille | Base | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1996 | Cadillac | DeVille | Concours | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1996 | Cadillac | DeVille | Base | 4.6L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.