
Vehicle Specific
Check if it fits by entering your vehicle info| Brand | Walker | 
| Part Number | 18977 | 
| Part Description | Soundfx Steel Oval Direct Fit Aluminized Exhaust Muffler | 
| Automotive Item Grade | Standard Replacement | 
| Connection Type | Pipe | 
| Inlet - Outlet Configuration | Offset Inlet - Offset Outlet | 
| Inlet Diameter Designation | Inside Diameter | 
| Inlet Quantity | 1 Inlet | 
| Muffler Body Finish | Aluminized | 
| Muffler Body Height | 7" | 
| Muffler Body Length | 28" | 
| Muffler Body Material | Steel | 
| Muffler Body Shape | Oval | 
| Muffler Body Width | 9" | 
| Muffler Inlet Diameter | 2.5" | 
| Muffler Outlet Diameter | 2.5" | 
| Muffler Overall Length | 32" | 
| Muffler Reversible | No | 
| Muffler Series | SoundFX™ | 
| Muffler Type | Reflection | 
| Outlet Diameter Designation | Inside Diameter | 
| Outlet Quantity | 1 Outlet | 
| Year Make Model | Trim | Engine | 
|---|---|---|
| 2004 Ford F-150 | STX | 8 Cyl 4.6L | 
| 2004 Ford F-150 | XL | 8 Cyl 4.6L | 
| 2004 Ford F-150 | XLT | 8 Cyl 4.6L | 
| 2004-2007 Ford F-150 | FX4 | 8 Cyl 5.4L | 
| 2004-2007 Ford F-150 | Lariat | 8 Cyl 5.4L | 
| 2004-2007 Ford F-150 | XL | 8 Cyl 5.4L | 
| 2004-2007 Ford F-150 | XLT | 8 Cyl 5.4L | 
| 2004-2008 Ford F-150 | All Trims | 8 Cyl 4.6L | 
| 2004-2008 Ford F-150 | All Trims | 8 Cyl 5.4L | 
| 2005-2008 Ford F-150 | All Trims | 6 Cyl 4.2L |