Discount Starter and Alternator 6646N Ford Expedition Replacement Starter New Aftermarket Part (Not Rebuilt/Refurbished/Repurposed) OEM(s): Ford Type: PMGR Voltage: 12 Volts Rotation: CW Teeth/Splines: 12 Teeth/Splines Pinion/Splines OD: 30.7mm / 1.209in Mounting Hole 1: 9.0mm ID Unthreaded Mounting Hole 2: 9.0mm ID Unthreaded Mounting Hole 3: 8.0mm ID Unthreaded Approximate Weight: 8.865 lbs / 4.03 kg Replaces: AC DELCO 336-1937 DENSO FIRST TIME FIT 280-5128 FORD F81U-11000-AA, F81U-11000-AB, F81U-11000-AC, F81U-11000-AD, 6L34-11000-CA, 6L3Z-11002-CA, 7L1Z-11002-A, 5R3Z-11002-A, 6R3Z-11002-A, 9L3Z-11002-A FORD ENGINEERING F81U-AA, F81U-AB, F81U-AC, F81U-AD, F81U-AE, YC3U-AA, YC3U-AB, YC3U-AC, 5L34-AA, 6C3T-BA, 6L34-CA MOTORCRAFT SA-873, SA-940, SA-954, SA-956, SA-966, SA-960, SA-961 Please verify this is the right part number before ordering