Spindle Assembly / MTD 918-0574CPack Size:1MTD 918-0574, Troy-Bilt 918-0574, MTD 618-0574, MTD 618-0565, MTD 918-0574C, Troy-Bilt 918-0574C, Troy-Bilt 618-0565, Troy-Bilt 618-0574Dealer Choice 39-2160, Oregon 82-517, NHC 250-4866, Prime Line 7-03174MTD Newer 600 Series with 42" deck; Troy-Bilt 13AP609G063, 13AQ609G063, 13BD609G063, 13BX609G063 and LTX1842Specially designed: to fit 6 pt. star spindle shaft, Grease fitting, No threads in housing, use self-tapping screws, Includes pulley and nut, OD of Pulley: 5 3/4 "