The JCB 02910581 is a genuine OEM oil filler cap designed for various JCB backhoe loader models, including the 3CX, 4CX, 5CX, 210, 212, 214, 215, 217, 210S, and 212S series. This essential component ensures a sealed oil reservoir, preventing contaminants and maintaining proper lubrication system integrity. Manufactured to JCB's exacting standards, it guarantees a precise fit and reliable performance.