This is a A-65338C91 Clutch PN: 65338C91Main Description As Following : A-65338C91 Clutch P.N: 65338C91 Compressor DrivePulley Diameter: 6"Pulley Grooves: 2X: 1.66"Y: .62" Stocked As: A-600-283 Found in Section & Models : Air Conditioning Parts > Clutch, Case-IH TRACTOR: HYDRO 100, Case-IH TRACTOR: 1066, Case-IH TRACTOR: 1466, Case-IH TRACTOR: 1566, Case-IH TRACTOR: 4166, Case-IH TRACTOR: 4186, Case-IH TRACTOR: 766, Case-IH TRACTOR: 966 Associated Items : New Also A-IH-O-BATTIGN, A-IH-S-ENG3400, A-IH-S-TOOLSLATE, A-IH-S-TUNELATE, A-SMIH202, A-IH-O-BATTIGN, A-IH-O-1066, A-IH-O-766966, A-IH-P-ENG56CYL, A-IH-P-766966, A-IH-S-AIRHEAT, A-IH-S-ENG3400, A-IH-S-TOOLSLATE, A-IH-S-TUNELATE, A-IH-S-766966, A-MW-P-TENDER, A-SMIH203, A-IH-O-BATTIGN, A-IH-O-766966, A-IH-P-ENG56CYL And : Pulley Diameter: 6" Pulley Grooves: 2 X: 1.66" Y: .62"