This is a A-3218637R1 Ring Gear, Flywheel PN: 3218637R1Main Description As Following : A-3218637R1 Ring Gear, Flywheel P.N: 3218637R1 Inside Diameter: 14.625"Outside Diameter: 16.125"Teeth: 128Width: 0.5625" Found in Section & Models : Engine Parts > Flywheels and Ring Gears, Case-IH COTTON PICKER: 782, Case-IH TRACTOR: 4230, Case-IH TRACTOR: 4240, Case-IH TRACTOR: 884, Case-IH TRACTOR: 885, Case-IH TRACTOR: 895, Case-IH TRACTOR: 995 Associated Items : New Also A-IH-O-BATTIGN, A-IH-O-385484, A-IH-S-ENGD155, A-IH-S-TOOLSLATE, A-IH-S-TUNELATE, A-IH-S-385454, A-SMIH202, A-CA-O-885DB, A-CA-P-885ETEC, A-CA-P-885NQDB, A-CA-S-770TM, A-CA-S-955, A-CA-S-995, A-IH-O-BATTIGN, A-IH-S-AIRHEAT, A-IH-S-ENGD155, A-IH-S-TUNELATE, A-IH-S-85SERERLY, A-CA-S-995, A-IH-O-BATTIGN And : Inside Diameter: 14.625" Outside Diameter: 16.125" Teeth: 128 Width: 0.5625"