Premium quality aftermarket and OEM-compatible seal kits engineered specifically for JCB construction equipment. Designed for backhoe loaders (3CX, 4CX, 214, 215 series), excavators (JS series: JS200, JS210, JS220), hydraulic breakers (HM series: HM033T, HM100, HM260, HM360, HM495, HM860, HM1050, HM1750, HM3850), and tracked machines.Applications include excavator boom cylinder seals, arm cylinder seals, bucket cylinder seals, stabilizer seals, tilt cylinder seals, hydraulic breaker hammer rebuild, gear pump seals, and backhoe loader hydraulic systems. Direct replacement for OEM part numbers including 331/39047, 332/E8224, 991/00002, 991/00003, 991/20008, 998/10374, 333/C8769, 4206167/KP10, and more . Perfect for heavy-duty construction, quarrying, demolition, and mining environments.