The Craftsman 1719385SM Lawn Tractor Pulley maintains a smooth belt to support consistent cutting performance from the outset. This replacement pulley is designed to guide and stabilize the drive belt within the mower’s deck system, allowing power to transfer efficiently from the engine to the blades. Its precise construction promotes proper belt alignment, which reduces slippage and ... https://www.wholetoolbox.com/craftsman-1719385sm-lawn-tractor-pulley