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WalkerPart #: 54990
Walker 54990 Exhaust Muffler Assembly - Front
⚙️ 6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$125.85Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Quiet-Flow SS, Front
🚗Fitment: Acura, RDX
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Exhaust Muffler Assembly options
Walker 54990 Exhaust Muffler Assembly - Front
| Brand | Walker |
| Part Number | 54990 |
| Position | Quiet-Flow SS, Front |
| Inlet Outside Diameter | 2.415 |
| Finish | Natural |
| Body Diameter | 9.75 |
| Inlet Type | 3 bolt welded flange |
| Outlet Type | Pipe connection |
| Body Height | 4.25 |
| Body Length | 14 |
| Muffler Material | Stainless steel |
| Muffler Shape | Oval |
| Overall Length | 47.325 |
| Body Material | Stainless steel |
| Body Width | 9.75 |
| Grade Type | Regular |
| Inlet 1 Outside Diameter | 2.415 |
| Inlet 1 Type | 3 bolt welded flange |
| Inlet Configuration | Center |
| Inlet Quantity | 1 |
| Muffler Type | Reflection |
| Outlet 1 Outside Diameter | 2.25 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Center |
| Outlet Quantity | 1 |
| Shape | Oval |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Acura | RDX | 3.5L | V6 | Front | Quiet-Flow SS |
| 2017 | Acura | RDX | 3.5L | V6 | Front | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2016 | Acura | RDX | 3.5L | V6 | Front | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2015 | Acura | RDX | 3.5L | V6 | Front | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2014 | Acura | RDX | 3.5L | V6 | Front | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2013 | Acura | RDX | 3.5L | V6 | Front | Premium; Limited Lifetime Warranty; 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:
18220TX4A02
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.