MTD 918-04125C Spindle Assembly Genuine OEM MTD Part; 5.39" X 0.5625" Diameter, Replaces: 618-04125 , 618-04125A , 618-04125B , 618-04126 , 618-04126A , 618-04126B , 918-04125A , 918-04126 , 918-04126A , 918-04126B Deck Spindle Assembly for 50" & 54" Mower Decks with Star Shaft Fits: Cub Cadet I1050, LGT1050, LGTX1054, RZT50, RZT50KH, RZT50KW, RZT-S50, SLTX1050, STLX1054; MTD Riders & RZTs with 50" & 54" decks 2011 and after; Troy-Bilt: TB2450, Mustang XP Includes Pulley. Does Not Include 4 Tap Screws to Mount