The Toro Genuine Part 1-413010 Sheave ASM is an authentic original equipment manufacturer (OEM) flat idler pulley designed for use in a variety of Toro and Exmark commercial mowers. This durable component ensures smooth and reliable operation of the belt system in compatible models, such as specific Lazer Z and Turf Tracer series equipment. It is a critical replacement part manufactured to exact specifications for optimal fit and performance.