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WalkerPart #: 21859

Walker 21859 Exhaust Muffler - Right
⚙️ 15 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Quiet-Flow SS, Right
🚗Fitment: Buick and Chevrolet, Malibu, Malibu Limited, and Regal
🔄Easy Returns — Return within 60 days for a full refund
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Walker 21859 Exhaust Muffler - Right
| Brand | Walker |
| Part Number | 21859 |
| Position | Quiet-Flow SS, Right |
| Grade Type | Regular |
| Body Width | 15 |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Overall Length | 22.5 |
| Body Height | 7.75 |
| Body Length | 22.75 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet 1 Inside Diameter | 2 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Body side |
| Muffler Type | Combination |
| Outlet 1 Outside Diameter | 2.25 |
| Outlet 1 Type | Tip |
| Outlet Configuration | Body side |
| Shape | Irregular |
This part fits 15 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2017 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS | |
| 2016 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS | |
| 2016 | Chevrolet | Malibu Limited | LT | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2016 | Chevrolet | Malibu Limited | LS | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2015 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS | |
| 2015 | Chevrolet | Malibu | LT | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2015 | Chevrolet | Malibu | LS | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2014 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS | |
| 2014 | Chevrolet | Malibu | LT | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2014 | Chevrolet | Malibu | LS | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2013 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS | |
| 2013 | Chevrolet | Malibu | LT | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2013 | Chevrolet | Malibu | LS | 2.5L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2012 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS | |
| 2011 | Buick | Regal | 2.4L | L4 | Right | Premium; with Dual Exhaust; Limited Lifetime Warranty; 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:
209957132293169823149149233691882341208923415333
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.