This is a A-W9863420 Pulley, Idler PN: W9863420Main Description As Following : A-W9863420 Pulley, Idler P.N: W9863420 Dim A (1): Outer Dia.: 7.00"Dim B (2): Hole Dia.: 0.50"Dim C (3): Width: 1.37"Dim D (4): Belt Width: 0.995" Stocked As: A-AG2613A Found in Section & Models : Headers/Platforms/Feeder House > Grain Head Parts, White/ Oliver/ Mpl Moline COMBINE: 4296, White/ Oliver/ Mpl Moline COMBINE: 545, White/ Oliver/ Mpl Moline COMBINE: 7300 Associated Items : New Also This is An Aftermarket Product And : Dim A (1): Outer Dia.: 7.00" Dim B (2): Hole Dia.: 0.50" Dim C (3): Width: 1.37" Dim D (4): Belt Width: 0.995"