Replacement Spindle Drive Pulley designed for use with 42', 44', 48', 50', and 54' mower decks and compatible with GT5000, LT1000, and LT2000 models. Built to restore reliable power transfer from the engine to the spindle assembly and keep your deck cutting evenly. Key benefits Restores cutting performance: replaces worn or damaged pulleys to eliminate belt slipping, uneven blade speeds, and poor cut quality. Reduces downtime: directfit design helps make ondeck replacement fast and straightforward, getting your mower back to work sooner. Extends component life: stable belt tracking and reduced vibration help protect belts and spindle components, lowering future needs. Reliable operation: precision manufacturing helps maintain consistent tension and rotation for smoother deck performance. Features and key attributes Compatibility: fits 42', 44', 48', 50', and 54' deck sizes; compatible with GT5000, LT1000, and LT2000 models as listed in the product title. Functionality: spindle drive pulley for transferring engine or PTO power to the mower spindle assembly; designed for use in standard lawn mower deck drive systems. Construction: engineered for durability and consistent performance under normal mowing conditions. Performance: promotes smooth belt tracking, minimizes slippage, and supports even blade speed for improved cut quality. Fitment: intended as a direct replacement for the spindle drive pulley used on the specified deck sizes and models (verify fit against your existing pulley and deck assembly before installation). Use cases / applications Replacement after wear or damage: swap in this pulley when your current pulley shows grooves, cracks, excessive wobble, or causes belt slip to restore proper deck operation. Preventive maintenance: include the pulley in scheduled deck service to maintain belt alignment and reduce stress on spindle bearings and belts. Deck rebuild or spindle replacement: install this pulley when rebuilding a mower deck or replacing spindle assemblies to ensure correct power transfer and alignment. Installation notes Intended as a direct replacement for the listed deck sizes and models; confirm compatibility with your exact mower configuration before . Inspect related hardware (bolts, keys, belts, and spindle bearings) while replacing the pulley and as needed to ensure safe, longlasting operation. Compatible with the deck sizes and models specified in the title: 42', 44', 48', 50', 54' decks and GT5000, LT1000, LT2000 models.