This is a A-1324949C1 Fan Sheave, Variable Speed, Fixed Half PN: 1324949C1Main Description As Following : A-1324949C1 Fan Sheave, Variable Speed, Fixed Half P.N: 1324949C1 Bore: 1.25"Outside Diameter: 11.875" Crossed From: AM1324949C1 , , AV100766 VAPORMATIC , WN-1324949C1 , , WN1324949C1 , Found in Section & Models : Separator Area > Separator Area, Case-IH COMBINE: 1420 (SN 5501->), Case-IH COMBINE: 1440 (SN 21622->), Case-IH COMBINE: 1460 (SN 12001->), Case-IH COMBINE: 1470, Case-IH COMBINE: 1480 (SN 14001->), Case-IH COMBINE: 1482, Case-IH COMBINE: 1620, Case-IH COMBINE: 1640, Case-IH COMBINE: 1660, Case-IH COMBINE: 1680 Associated Items : New Also A-IH-P-ENG56CYL, A-IH-P-1420COMB, A-IH-S-ENGD155, A-IH-O-1440COMB, A-IH-P-ENG56CYL, A-IH-P-1440COMB, A-IH-S-ENG3400, A-IH-S-1440COMB, A-IH-O-1440COMB, A-IH-P-ENG56CYL, A-IH-P-1460COMB, A-IH-S-ENG3400, A-IH-S-1440COMB, A-IH-O-1440COMB, A-IH-P-ENG56CYL, A-IH-P-1480COMB, A-IH-S-ENG3400, A-IH-S-1440COMB, A-IH-S-1482COMB, A-IH-P-1620COMB And : Bore: 1.25" Outside Diameter: 11.875"