The JCB 02930237 O-RING is a genuine replacement part designed for a wide range of JCB agricultural, construction, and industrial machinery. This O-ring features an inner diameter of 15.54 mm and a cross-section thickness of 2.62 mm, ensuring a precise seal in hydraulic and fluid systems. It is compatible with numerous JCB models including Backhoe Loaders (3CX, 4CX, 5CX), Loadalls (520, 530, 540 series), Fastrac tractors (1000, 2000, 3000, 4000, 8000 series), and JS series Excavators. This essential component helps maintain system integrity and prevent leaks, crucial for optimal machine performance.