Compatibility:Starter replacement for Ford ,1999-2003,2006-2008 F-150 4.2L,2004 F-150 Heritage 4.2L,(Ford Permanent Magnet Gear Reduction) Please confirm whether your model matches this product model.Shims reduce noise and vibration.
Interchange Part Number:Starter Interchanges The Part Numbers: 6647N, XL1U11000AA, 6647, XL1U11000AB, XL1U11000AC, XL1Z11002AA, 5L3Z11002B, 6L3Z11002DA, XL1UAB, XL1UAA, XL1UAC, . This product meets or exceeds OE standards.