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OE Quality
60-Day Returns
WalkerPart #: 21344
Walker 21344 Exhaust Muffler
⚙️ 7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$156.58Free 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
🚗Fitment: Ford and Mercury, Explorer and Mountaineer
🔄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 options
Walker 21344 Exhaust Muffler
| Brand | Walker |
| Part Number | 21344 |
| Position | Quiet-Flow SS |
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Inlet Inside Diameter | 2.25 |
| Body Width | 11 |
| Outlet Inside Diameter | 2 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 36.325 |
| Body Height | 5.5 |
| Body Length | 20 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Type | 2 bolt loose flange with spherical flare |
| Inlet 2 Inside Diameter | 2.25 |
| Inlet 2 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Offset | 3.5 |
| Inlet Quantity | 2 |
| Inlet Type | 2 bolt loose flange with spherical flare |
| Inlet Type | Pipe connection |
| Muffler Type | Combination |
| Outlet 1 Inside Diameter | 2 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Center |
| Outlet Type | Pipe connection |
This part fits 7 vehicles. Search below:
| Year | Make | Model | # Doors | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2000 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Before 11/08/1999; Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2000 | Mercury | Mountaineer | 4.0L | V6 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS | |
| 1999 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Before 11/08/1999; Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 1999 | Mercury | Mountaineer | 4.0L | V6 | N/A | Before 11/08/1999; Premium; Limited Lifetime Warranty; Quiet-Flow SS | |
| 1998 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 1998 | Mercury | Mountaineer | 4.0L | V6 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS | |
| 1997 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | 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:
22132226
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.