BACK UP RING
087-5394 BUCKET CYLINDER SEAL KIT FOR E330
041-7664 BUCKET CYLINDER SEAL KIT FOR E320
0310504 BUCKET CYLINDER SEAL KIT FOR ZX160LC
119-5435 1195435 ARM STICK SEAL KIT FOR E311B E312B E313B
099-5311 0995311 ARM STICK CYLINDER SEAL KIT FOR E120B 099-5311 0995311 ARM STICK CYLINDER SEAL KIT FOR E120B:Default Title BACK UP RING? 099 5311 0995311 ARM STICK CYLINDER SEAL KIT FOR E120B ? MATERIAL: NITRILE RUBBER(NBR), POLYTETRAFLUOROETHYLENE(PTFE), POLYURETHANE (PU), NYLON, COPPER, STEEL ETC THE SEAL KIT CONSISTS OF ROD SEAL (IDI ISI), BUFFER RING (HBY), DUST SEAL (DKB), O RING, BACK UP RING, PISTON SEAL (SPGO SPGW SPG KDAS), WEAR RING (WR KZT N4W)ETC; VARIOUS SEAL KITS AVAILABLE FOR BOOM ARM BUCKET HYDRAULIC CYLINDER, MAIN PUMP, CONTROL VALVE, TRACK ADJUSTER, SWING MOTOR,