4194621 Arm Cylinder Wear Ring Fits Hitachi EX270-ZX280 model-590 Super M Plus Replaces Part Numbers: ENB10-0036

Replaces Part Numbers: ENB10-0036

Replaces Part Number(s): 2820-00002-0

Dump (High Lift): WA320-3L

Type - B Section

5718 (Z5501 Engine)

4194621 Arm Cylinder Wear Ring Fits Hitachi EX270-ZX280 model-590 Super M Plus Replaces Part Numbers: ENB10-0036One New Aftermarket Replacement Arm Cylinder Wear Ring for Hitachi Excavators EX270 ZX280 Series This aftermarket replacement arm cylinder wear ring (also referred to as a wearing ring or piston wear ring) is a hydraulic cylinder rebuild and repair component for Hitachi excavators. Wear rings guide and support the piston within the hydraulic cylinder bore, preventing metal to metal contact, reducing side loads, and maintaining alignment for smooth,