4276696 O-Ring Fits HITACHI ZX120, ZX135One New Aftermarket Replacement O Ring for Hitachi (Zaxis) Excavators This aftermarket replacement O Ring (OEM part number 4276696) fits the bucket linkage assembly on Hitachi Zaxis and EX series excavators. Each machine requires 4 of these O Rings in the bucket pin and H link area. This seal is a wear item that should be inspected and replaced during bucket pin and bushing service to maintain a proper seal at the linkage joints. Compatible Models
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