The John Deere HXE91996 Pulley is a genuine OEM replacement part engineered for reliable operation in John Deere agricultural machinery. This durable pulley is critical for various drive systems in S-Series Combines, including models S760, S770, S780, S785, S790, S660, S670, S680, S690, 9670STS, 9770STS, 9870STS, 9780CTS, 9660STS, 9560STS, 9570STS, 9880STS, 9680STS, S550, and S650. It also provides essential functionality for 8000-Series Forage Harvesters such as 8100, 8200, 8300, 8400, 8500, 8600, 8700, and 8800. Weighing approximately 0.36 kg, this pulley helps maintain proper tension and smooth power transmission within the machine's mechanisms.