07001-03038 Back-Up Ring Fits Komatsu Models
07001-03038 Back-Up Ring Fits Komatsu Models
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One New Aftermarket Replacement Back-Up Ring for Komatsu Construction Equipment
This aftermarket replacement back-up ring is a Komatsu Engineering Standard (KES) seal component used in hydraulic systems across a wide range of Komatsu construction equipment. Back-up rings work alongside O-ring seals to prevent extrusion under high-pressure hydraulic conditions, maintaining a reliable seal in cylinders, valves, and other hydraulic assemblies. Keeping these seals in good condition is critical to preventing hydraulic fluid loss and costly downtime on the job site.
Compatible Models
Komatsu: This is a Komatsu KES (Komatsu Engineering Standard) part used across multiple Komatsu equipment lines including excavators, wheel loaders, bulldozers, and forklifts. Verify fitment using your machine model and serial number before ordering.
Replaces Part Number(s):
07001-03038
New aftermarket replacement part - not remanufactured, not used.



