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Walker 21489 Exhaust Muffler
Walker Quiet-Flow SS Muffler for Cherokee
Walker Quiet-Flow SS muffler Part Number 21489 is a direct-fit exhaust muffler for select Jeep Cherokee applications. It combines stainless-steel body construction with an OE-style sound profile and a precision-fit layout for a cleaner replacement on the exhaust system.
Key Features
- Specific-fit exhaust muffler for select Jeep Cherokee models
- 100% stainless-steel body construction
- Oval muffler shape with a combination muffler design
- 2.25-inch inlet and 2.25-inch outlet
- Center inlet configuration with offset outlet configuration
- 2-bolt welded flange inlet and pipe connection outlet
- Overall length: 26.5 inches
- Body dimensions: 20 inches long, 9.75 inches wide, 4.25 inches high
- Walker Quiet-Flow SS product line focuses on fit, flow, and OE-style sound
Detailed Description
Walker Quiet-Flow SS Part Number 21489 is built for 2000-2001 Jeep Cherokee models listed in the fitment data, including 2000 Cherokee with California Emission System after 01/20/2000 and 2001 Cherokee. This muffler uses a center inlet, offset outlet layout and a 2.25-inch pipe connection to match the specified exhaust configuration. The stainless-steel body is paired with an aluminized finish for a durable replacement option in the exhaust system. This part cross-references Anchor 3236 and AP Exhaust 18168 for the same application.
Common Exhaust Issues It Can Address
- Excessive exhaust noise from a worn muffler
- Rust or corrosion in the muffler body
- Restricted exhaust flow from internal deterioration
- Fitment problems when replacing a welded exhaust assembly
- Loss of OE-style exhaust tone on a Jeep Cherokee
Installation Notes and Tips
Compatible With 2001 Jeep Cherokee, N/A, and 2000 Jeep Cherokee, N/A, with California Emission System after 01/20/2000. Verify inlet and outlet orientation, flange style, and overall length before installation. If the vehicle uses a welded assembly, replace all required exhaust parts as noted in the fitment data. Part Number 21489 should be matched to the listed Cherokee application and exhaust configuration before welding or final assembly.
Quality Assurance
Walker Quiet-Flow SS mufflers are engineered with precision fit and superior flow characteristics, and the product line is positioned for OE-style sound on domestic and import vehicles. The stainless-steel construction supports long-term exhaust service in demanding conditions.
| Brand | Walker |
| Part Number | 21489 |
| Position | Quiet-Flow SS |
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Body Width | 9.75 |
| Inlet Quantity | 1 |
| Outlet Inside Diameter | 2.25 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 26.5 |
| Body Height | 4.25 |
| Body Length | 20 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Type | 2 bolt welded flange |
| Inlet Configuration | Center |
| Inlet Type | 2 bolt welded flange |
| Muffler Type | Combination |
| Outlet 1 Inside Diameter | 2.25 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Offset |
| Outlet Type | Pipe connection |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | Jeep | Cherokee | 4.0L | L6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2000 | Jeep | Cherokee | 4.0L | L6 | N/A | Premium; with California Emission System; Limited Lifetime Warranty; After 01/20/2000; If welded assembly, replace all required parts; Quiet-Flow SS |
* 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.