RING-BACK UP (Komatsu KO30B-63-11710)

KO30B-63-11710: A damaged retaining ring can allow assembled components to separate under load, leading to mechanical failure. During inspection, a back-up ring may show deformation or cracking from repeated stress cycles. Retaining ring condition directly affects the security of shaft or bore assemblies. Keeping a back-up ring in sound condition helps maintain axial positioning of adjacent parts. This aftermarket replacement part references Komatsu as the OE maker and cross-references part number KO30B-63-11710. The item ships at approximately 0.01 POUNDS. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO30B-63-11710, ko30b-63-11710, KO30B6311710, ko30b6311710