4194621 Arm Cylinder Wear Ring Fits Hitachi EX270-ZX280
4194621 Arm Cylinder Wear Ring Fits Hitachi EX270-ZX280
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One 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, efficient arm cylinder operation. This part is used during cylinder rebuilds and overhauls on Hitachi EX270 and ZX280 series excavators.
Compatible Models
Hitachi EX Series: EX270, EX270LC
Hitachi ZX Series: ZX280
Note: Verify your specific cylinder part number and serial number range prior to ordering. Multiple arm cylinder variants exist across the EX270 and ZX280 model range.
Replaces Part Number(s):
4194621
New aftermarket replacement part - not remanufactured, not used.
