Rotary Replacement Spindle Assembly for Cub Cadet (Mtd) 918-04123, 618-04123, 918-04123b,718-04123b. Has Grease Zerk. Complete spindle assembly. Includes housing, shaft, bearings, pulley, and blade bolt. Does not include mounting hardware, mounting holes are not tapped Old bolts removed will be self tapping bolts, use them to install. This spindle is for blades with 3/4" round holes, not the star blades.