This is a A-134547C91 Clutch PN: 134547C91Main Description As Following : A-134547C91 Clutch P.N: 134547C91 Compressor DrivePulley Diameter: 7"Pulley Grooves: 2X: 1.66"Y: .62" Stocked As: A-600-281 Found in Section & Models : Air Conditioning Parts > Clutch, Case-IH TRACTOR: 4568, Case-IH TRACTOR: 4586, Case-IH TRACTOR: 4786, Air Conditioning Parts > Compressor, Case-IH TRACTOR: 4568, Case-IH TRACTOR: 4586, Case-IH TRACTOR: 4786 Associated Items : New Also This is An Aftermarket Product And : Pulley Diameter: 7" Pulley Grooves: 2 X: 1.66" Y: .62"