JCB 99100016 Lift Cylinder Seal Kit

The JCB 99100016 seal kit is engineered for the loader lift ram hydraulic cylinder on JCB backhoe loaders and wheeled loaders. It features a 50 mm rod diameter and 80 mm cylinder bore configuration. The kit includes all necessary seals, O-rings, and wear rings to rebuild the cylinder and restore hydraulic integrity. Manufactured to OEM dimensional standards using high-grade polyurethane, nitrile (NBR), and PTFE compounds. Materials are selected for high-pressure resistance, high-temperature stability, and compatibility with mineral-based hydraulic fluids in harsh construction environments. The kit addresses external leakage and internal bypass issues common in worn lift cylinders. Direct replacement for JCB OEM part numbers 991/00016, 99100016, and 991-00016. Verified fitment for JCB 3CX, 3D, 4C, 4CN series backhoe loaders and 410, 412, 415, 420, 430 wheeled loaders. Confirm serial number and cylinder identification prior to installation as application varies by production range.