O-RING (Hyundai HNA40001-09)

HNA40001-09: A damaged retaining ring can allow assembled components to separate during operation, leading to mechanical failure. This aftermarket replacement part references Hyundai as the OE maker and cross-references part number HNA40001-09. The retaining ring functions as a fastener that holds components in place within a groove. Its plain mechanical role is to prevent axial movement of parts on a shaft or in a bore. A common generic failure consequence is that a worn or broken ring may cause unintended disassembly, resulting in costly downtime. Keeping a retaining ring in sound condition helps maintain secure assembly under normal loads. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HNA40001-09, hna40001-09, HNA4000109, hna4000109