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Walker 18829 Exhaust Muffler
| Brand | Walker 18829 |
|---|---|
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Body Width | 9 |
| Inlet Quantity | 1 |
| Outlet Inside Diameter | 2.5 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 35.625 |
| Body Height | 7 |
| Body Length | 24 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet 1 Type | 3 bolt welded flange |
| Inlet Configuration | Offset |
| Inlet Offset | 2 |
| Inlet Type | 3 bolt welded flange |
| Muffler Type | Combination |
| Outlet 1 Inside Diameter | 2.5 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Offset |
| Outlet Type | Pipe connection |
| Product line | SoundFX Direct Fit |
| Fits | Chevrolet and GMC · 8 vehicles |
Direct-fit design. Made for a specific fit with straightforward installation.
Aluminized steel. Helps resist corrosion for longer service life than low-carbon steel.
Durable construction. Mechanical interior joints and spun-locked heads add strength.
Cross-references AP Exhaust 700254 for the same application. See all 1.
Walker SoundFX Direct Fit Muffler for Astro and Safari
Walker SoundFX Direct Fit muffler Part Number 18829 is a specific-fit exhaust muffler for 1996-1999 Chevrolet Astro and 1996-1999 GMC Safari applications. It combines an oval steel body with an aluminized finish for a durable OE-style replacement that supports controlled exhaust sound and a clean undercar appearance.
Key Features
- Specific-fit exhaust muffler for direct replacement applications
- Oval body design with 35.625-inch overall length
- 100% aluminized steel construction for longer service life than low-carbon steel
- Mechanical interior joints and spun-locked heads for added durability
- Offset inlet and offset outlet layout with 2.5-inch inside diameter outlet
- 3-bolt welded flange inlet for vehicle-specific exhaust connection
Product Details
Walker SoundFX Direct Fit is built for drivers who need a replacement muffler that matches the original exhaust layout without universal-fit modification. Part Number 18829 uses a combination muffler design with a 9-inch body width, 7-inch body height, and 24-inch body length, making it a practical OE-style solution for the Chevrolet Astro and GMC Safari. The aluminized steel body helps resist corrosion, while the internal construction is engineered to maintain structural integrity over time and deliver favorable acoustics.
This part cross-references AP Exhaust 700254 for the same application.
Common Exhaust Issues It Can Address
- Excessive exhaust noise from a worn muffler
- Rust-through or corrosion on the muffler body
- Damaged inlet or outlet connection points
- Exhaust system leaks caused by deteriorated muffler construction
- Loss of original exhaust tone on Astro and Safari vans
Installation Notes and Tips
Compatible With 1996-1999 Chevrolet Astro and 1996-1999 GMC Safari, this muffler is intended for vehicle-specific exhaust routing with an offset inlet and offset outlet. If the vehicle uses a welded assembly, replace all required parts during service to restore proper exhaust alignment and sealing. Verify flange style, inlet offset, and outlet diameter before installation to confirm match with the existing exhaust system.
Quality Assurance
Walker SoundFX Direct Fit mufflers are built with aluminized steel, mechanical interior joints, and spun-locked heads to support durability in everyday exhaust service. The SoundFX Direct Fit line focuses on direct-fit replacement construction and controlled acoustics for repair work on original-equipment-style exhaust systems.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | Chevrolet | Astro | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1999 | GMC | Safari | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1998 | Chevrolet | Astro | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1998 | GMC | Safari | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1997 | Chevrolet | Astro | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1997 | GMC | Safari | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1996 | Chevrolet | Astro | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| 1996 | GMC | Safari | 4.3L | V6 | N/A | If welded assembly, replace all required parts; SoundFX Direct Fit |
| No rows match your filter. | ||||||