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Walker 18599 Exhaust Muffler - Left
| Brand | Walker 18599 |
|---|---|
| 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 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 23 |
| Body Height | 4.25 |
| Body Length | 19 |
| 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 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Offset |
| Outlet Type | Pipe connection |
| Product line | SoundFX Direct Fit |
| Fits | Buick, Cadillac, and Chevrolet · 12 vehicles |
Direct-fit replacement. Installs with a specific fit for easier replacement.
Aluminized steel. Helps resist corrosion for longer service life.
Favorable acoustics. Delivers a quality sound and appearance.
Cross-references TYC 700172 and 700232 for the same application. See all 2.
Walker SoundFX Direct Fit Muffler 18599
Walker SoundFX Direct Fit muffler 18599 is a specific-fit exhaust muffler for select full-size GM applications. It uses 100% aluminized steel for improved service life over low-carbon steel and delivers a clean OE-style appearance with controlled exhaust acoustics.
Key Features
- Specific-fit exhaust muffler for direct replacement applications
- Oval body shape with offset inlet and outlet configuration
- 2.25 in. inlet inside diameter and 2 in. outlet inside diameter
- 100% aluminized steel body and finish for corrosion resistance
- Mechanical interior joints and spun-locked heads for added durability
- Walker SoundFX Direct Fit line focuses on fit, finish, and sound control
Product Details
Built for select Buick Roadmaster, Cadillac Fleetwood, Chevrolet Caprice, and Chevrolet Impala models, this muffler is engineered as a direct-fit replacement for the left side on 1994-1996 vehicles listed in the fitment data. The oval steel body measures 23 inches overall, with a 19-inch body length, 9.75-inch body width, and 4.25-inch body height. Part number 18599 is a practical choice when you need a replacement exhaust muffler that matches the original pipe connection layout and supports a factory-style exhaust tone. This part cross-references TYC 700172 for the same application.
Vehicle Fitment
- Fits 1994-1996 Buick Roadmaster, left.
- Fits 1994-1996 Cadillac Fleetwood, left. If welded assembly, modifications and/or additional parts may be required.
- Fits 1994-1996 Chevrolet Caprice, left, with Dual Exhaust. If welded assembly, replace all required parts.
- Fits 1994-1996 Chevrolet Impala, left. If welded assembly, replace all required parts.
Common Replacement Reasons
- Rust-through or corrosion in the muffler body
- Exhaust noise increase from internal deterioration
- Restricted exhaust flow from damaged internal components
- Fitment issues after prior welded repairs or modifications
- Need for a direct-fit replacement on the left side
Installation Notes
Confirm inlet and outlet diameters, offset configuration, and left-side placement before installation. For welded assemblies, replace all required parts and verify alignment of the exhaust system before final welding or clamping. Part number 18599 is listed as a specific-fit muffler, so matching the vehicle application and pipe layout is important for proper installation.
Quality Assurance
Walker SoundFX Direct Fit mufflers use aluminized steel construction, mechanical interior joints, and spun-locked heads to support durability and consistent fit. The product line is built to provide quality appearance and controlled acoustics for replacement exhaust service.
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1996 | Buick | Roadmaster | — | Sedan | 5.7L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1996 | Cadillac | Fleetwood | Brougham | — | 5.7L | V8 | Left | If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit |
| 1996 | Chevrolet | Caprice | — | Wagon | 5.7L | V8 | Left | with Dual Exhaust; If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1996 | Chevrolet | Impala | — | — | 5.7L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1995 | Buick | Roadmaster | — | — | 5.7L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1995 | Cadillac | Fleetwood | Brougham | — | 5.7L | V8 | Left | If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit |
| 1995 | Chevrolet | Caprice | — | — | 5.7L | V8 | Left | with Dual Exhaust; If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1995 | Chevrolet | Impala | — | — | 5.7L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1994 | Buick | Roadmaster | — | — | 5.7L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1994 | Cadillac | Fleetwood | Brougham | — | 5.7L | V8 | Left | If welded assembly, modifications and/or additional parts may be required.; SoundFX Direct Fit |
| 1994 | Chevrolet | Caprice | — | — | 5.7L | V8 | Left | with Dual Exhaust; If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1994 | Chevrolet | Impala | — | — | 5.7L | V8 | Left | If welded assembly, replace all required parts; SoundFX Direct Fit |
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