O-RING (CAT CT21001-00036)

CT21001-00036: A damaged retaining ring can allow assembled components to separate under load, leading to mechanical failure. This aftermarket replacement part references the CAT catalog and cross-references part number CT21001-00036. The retaining ring functions as a mechanical fastener that seats in a groove to secure parts on a shaft or in a bore. When a retaining ring fails, the unsecured component may shift or dislodge during operation. In a typical repair scenario, a worn or corroded ring may no longer hold its position. The ring is a simple stamped metal part with no moving elements. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT21001-00036, ct21001-00036, CT2100100036, ct2100100036