The Husqvarna 532101344 Lawn Tractor Idler Pulley maintains proper belt tension and alignment in the mower's drive system. This pulley mounts to the idler arm and rotates as the belt moves during operation. It works by applying consistent pressure to the belt, preventing slipping and ensuring smooth power transfer between pulleys. Replacing a worn or damaged idler pulley restores prop... https://www.wholetoolbox.com/husqvarna-532101344-lawn-tractor-idler-pulley/532101344.html