The MTD 756-3107A Lawn Tractor Double Pulley helps transfer power through the belt system on compatible MTD lawn tractor applications. This double pulley works with the drive belts to guide and transfer rotational movement between connected components during tractor operation. It is a practical replacement for a worn, damaged, cracked, or bent pulley that may cause belt slipping, unus... https://www.wholetoolbox.com/mtd-756-3107a-lawn-tractor-double-pulley/756-3107A.html