This is a A-28996660 Bearing, Pilot PN: 28996660Main Description As Following : A-28996660 Bearing, Pilot P.N: 28996660 Dim A (1): .6693" IDDim B (2): 1.8504" ODDim C (3): .5512" Thick Stocked As: A-6303-2RS-I Found in Section & Models : Clutch Parts > Double Clutch, Fiat TRACTOR: R-450, Fiat TRACTOR: 446, Fiat TRACTOR: 446DT, Fiat TRACTOR: 450, Fiat TRACTOR: 466, Fiat TRACTOR: 466DT, Fiat TRACTOR: 480, Fiat TRACTOR: 480DT, Fiat TRACTOR: 500, Fiat TRACTOR: 500DT, Fiat TRACTOR: 540, Fiat TRACTOR: 540DT, Fiat TRACTOR: 55-56, Fiat TRACTOR: 55-56DT, Fiat TRACTOR: 550, Fiat TRACTOR: 566, Fiat TRACTOR: 566DT, Fiat TRACTOR: 580, Fiat TRACTOR: 580DT, Fiat TRACTOR: 60-56 Associated Items : New Also A-FI-S-466566, A-FI-P-566566DT, A-FI-S-466566, A-FI-P-566566DT, A-FI-S-466566, A-FI-S-466566, A-FI-S-780, A-FI-S-780 And : Dim A (1): .6693" ID Dim B (2): 1.8504" OD Dim C (3): .5512" Thick