This is a A-6108 Alternator, Bosch 55 amp PN: 6108Main Description As Following : A-6108 Clutch Pilot Bearing P.N: 6108 Inside Diameter: 1.437"Outside Diameter: 2.678"Width: .590" Crosses To: A-B1SB6108 ROTARY , Replaces: C5NNNT19A FORD , C5NNN779A FORD , A-C5NNN779B FORD , A-F0NNN779AA FORD , VPG5008 MISCELLANEOUS , 108SSA RIVERSIDE TRACTOR , A-410002100 LUK CLUTCH , A-60412 LUK CLUTCH , 81816675 FORD , 81859458 FORD , A-83903432 FORD , 83992560 FORD , Crossed From: 1112-6022 , Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada