RING - SQUARE (Hyundai HN3909356)

HN3909356: A damaged retaining ring can allow a shaft or bore component to shift out of position, leading to mechanical failure. This aftermarket replacement part references Hyundai as the OE maker and carries the cross-reference number HN3909356. A retaining ring is a fastener that seats into a groove to secure an assembly axially. When a retaining ring fails, the retained part may dislodge, causing noise, vibration, or total system breakdown. During a rebuild, a worn or deformed ring often requires replacement to restore secure retention. Verify the serial number or application, then call (562) 693-7748. The ring is a square-section type, which provides a positive lock in the groove under load.

Part number variants: HN3909356, hn3909356