The John Deere AZ40090 Tensioner Pulley is a genuine OEM component designed for various John Deere combine models. This essential pulley maintains correct belt tension, crucial for the efficient and reliable operation of your agricultural machinery. Manufactured to John Deere's rigorous standards, it ensures durability and precise fitment, contributing to the longevity of your combine's drive systems. With dimensions of approximately 150 mm length, 150 mm width, and 100 mm height, and a weight of 0.82 kg, this pulley is engineered for direct replacement and seamless integration.