The John Deere E45503 is a genuine OEM valve seat designed to maintain proper valve sealing and engine compression. This critical component ensures reliable performance and extends the lifespan of your John Deere agricultural or construction equipment. Measuring 38.1 mm in length, 38.1 mm in width, and 12.7 mm in height, and weighing approximately 0.045 kg, it is engineered for a precise fit in a wide range of John Deere tractors, combines, cotton pickers, forage harvesters, graders, loaders, power units, scrapers, skidders, sprayers, tillage equipment, and windrowers.