The Hustler 021840 Pump Belt is an authentic OEM replacement part designed for various Hustler lawn mower models. This durable belt is engineered to provide reliable power transmission to the pump, crucial for the efficient operation of the mower's hydraulic system. Constructed from high-quality materials, it offers excellent resistance to wear, heat, and stretching, ensuring a long service life and consistent performance. Regular replacement with a genuine Hustler belt helps maintain the manufacturer's specifications and extends the lifespan of your equipment.