Husqvarna 539112124 Lawn Mower Pulley 52" provides dependable power transfer for consistent mower deck performance. This replacement pulley is designed to guide and support the mower belt while transferring rotational power from the engine to the cutting system. It works by rotating with the belt, maintaining smooth belt movement and proper alignment to support efficient blade operati... https://www.wholetoolbox.com/husqvarna-539112124-lawn-mower-pulley-52/539112124.html