The JCB 15912004 Piston Kit is a genuine OEM replacement part designed for JCB engines, specifically compatible with 444 and 448 engine models found in JCB 3CX, 4CX backhoe loaders, and Loadall telehandlers. This comprehensive kit includes the piston, a complete set of piston rings, the piston pin, and circlips, ensuring a complete and reliable engine repair or overhaul. Manufactured to JCB's exacting standards, it guarantees optimal performance and durability.