The John Deere AR65502 Piston Ring Set is a genuine OEM component designed for a wide range of John Deere engines and machinery. This high-quality piston ring set ensures proper compression, oil control, and heat transfer within the engine, contributing to efficient and reliable operation. With a bore of 106.5 mm, it is engineered to meet the precise specifications of compatible John Deere models, including numerous tractors, combines, loaders, and power units. Trust this authentic John Deere part for superior durability and performance in demanding agricultural and construction applications.