The Simplicity 1700307SM Lawn Tractor Pulley helps transfer power through the mower drive system for smooth and reliable lawn tractor operation. Designed as a replacement pulley, it works with the belt and related drive components to guide and transfer rotational power between connected parts. Proper pulley function helps maintain correct belt alignment, reduce slipping, and support c... https://www.wholetoolbox.com/simplicity-1700307sm-lawn-tractor-pulley/1700307SM.html