Replacement Spindle Assembly Plus 4 Mounting Bolts for MTD 918-0671, 618-0671, 618-0671B, 918-0671B. Complete X style spindle assembly includes self tapping mounting bolts. Includes housing, shaft, bearings, pulley. Mounting holes not tapped, 4 self tapping bolts included,. aftermarket for MTD 710-1260A Shaft has 3 point star the fits 6 point MTD blades (or aftermarket variations)