The John Deere AL164479 is a genuine OEM defog sensor designed for a wide range of John Deere agricultural and construction machinery. This essential component plays a critical role in the climate control system, helping to maintain clear visibility by preventing fogging within the cab. Manufactured to John Deere's rigorous specifications, it ensures reliable performance and precise environmental monitoring. With a weight of approximately 0.054 kg and dimensions of 95.25 mm length, 50.8 mm width, and 25.4 mm height, this sensor is built for durability and seamless integration into compatible John Deere models like the 6R, 7R, 8R, 9R series tractors, S-series combines, and R-series sprayers.