The AYP 180397 Engine Pulley is a genuine OEM replacement part designed for various AYP, Craftsman, Husqvarna, Poulan, and Sears lawn tractors and riding mowers. This essential component is mounted on the engine crankshaft and drives the mower deck or ground drive belts, ensuring efficient power transmission. Constructed from durable materials, it provides reliable performance and a precise fit, maintaining correct belt tension and operation. Replaces part numbers 532180397, 180397, 532180397, 587686701, 587686702, and 532180397.