The John Deere R31401 is a genuine OEM piston ring designed for use in a wide range of John Deere agricultural and construction machinery. This critical engine component helps maintain proper compression and oil control within the engine cylinder, ensuring efficient operation and preventing oil consumption. Manufactured to John Deere's rigorous specifications, the R31401 piston ring provides reliable performance and durability, essential for engine longevity and optimal power output. Always refer to your equipment's parts catalog for exact fitment.