The MTD 918-0574C Spindle Assembly is a genuine OEM replacement designed for 42-inch mower decks, ensuring reliable blade rotation and smoother cutting performance. Built with precision and durability in mind, it includes a pre-installed pulley and grease fitting for effortless maintenance. Compatible with multiple MTD, Troy-Bilt, Cub Cadet, and Yard Machines models, it delivers long-lasting performance season after season.