The JCB 25997720 Repair Kit Boom Seal is a genuine OEM component designed for maintaining the hydraulic integrity of JCB 3CX, 4CX, and 5CX Backhoe Loaders. This essential seal kit ensures proper function of the boom cylinder, preventing leaks and maintaining efficient operation. Weighing approximately 0.12 kg, it is manufactured to JCB's rigorous standards for durability and performance, providing a reliable solution for hydraulic system repairs.