This is a A-B1MT52 Assembly, Spindle PN: B1MT52Main Description As Following : A-B1MT52 Assembly, Spindle P.N: B1MT52 6 point star center hole. Crossed From: 22-353 RATIO , 22353 RATIO , 285-116 STENS , 285-863 STENS , 285116 STENS , 285863 STENS , 618-0111 MTD/ CUB CADET/ WHITE , 618-0116 MTD/ CUB CADET/ WHITE , 618-0116A MTD/ CUB CADET/ WHITE , 618-0116B MTD/ CUB CADET/ WHITE , 618-0116C MTD/ CUB CADET/ WHITE , 618-0116P MTD/ CUB CADET/ WHITE , 6180111 MTD/ CUB CADET/ WHITE , 6180116 MTD/ CUB CADET/ WHITE , 6180116A MTD/ CUB CADET/ WHITE , 6180116B MTD/ CUB CADET/ WHITE , 6180116C MTD/ CUB CADET/ WHITE , 6180116P MTD/ CUB CADET/ WHITE , 82-512 OREGON , 82512 OREGON Found in Section & Models : Sunbelt - Rider & Walk-behind Parts > Spindles, MTD/ Cub Cadet/ White MOWER, RIDING: 600 SERIES (RH and center for models with 4, MTD/ Cub Cadet/ White MOWER, RIDING: 800 SERIES (RH and center for models with 4 Associated Items : A-B1AX32, A-B1MT125 Also This is An Aftermarket Product And : 6 point star center hole.