ASSEMBLY- PISTON RING- 05 (Hyundai HN1C011-21090)

HN1C011-21090: A worn retaining ring can allow a piston assembly to separate under load, leading to sudden mechanical failure. This aftermarket replacement part references the Hyundai catalog number HN1C011-21090. A retaining ring functions as a mechanical fastener that holds components in a fixed axial position. When a retaining ring loses its tension or breaks, the secured part may shift or dislodge during operation. In a piston assembly, a failed retaining ring can cause the piston pin to walk, resulting in scoring or seizure. The item ships at approximately 0.164 POUNDS. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HN1C011-21090, hn1c011-21090, HN1C01121090, hn1c01121090