Spindle Assembly for MTD, 618-0112,918-0112,618-0117,918-0117 Quality Aftermarket Spindle Assembly Replace MTD,Cub Cadet,Troy Bilt 618-0112,918-0112 Replace MTD,Cub Cadet,Troy Bilt 618-0117,918-0117 5-1/2" Overall height, 5/8"-18 Thread, fits star hole blades. Pulley and pulley nut not included