This is a genuine JCB part number 91710001, a high-quality needle bearing designed for various JCB agricultural and construction machinery. It ensures smooth and efficient operation, providing durability and reliable performance. Confirmed fitment includes JCB 3CX, 4CX, and numerous Loadall models such as 506, 508, 509, 510, 512, 514, 515, 516, 517, 518, 519, 520, 524, 525, 526, 527, 528, 530, 531, 533, 535, 536, 540, 541, 550, and 560.