O-RING (CAT CT0055317)

A damaged retaining ring can allow assembled components to separate under load, leading to mechanical failure. During disassembly, a retaining ring may become distorted or lose its tension. Keeping a retaining ring in sound condition helps maintain proper axial positioning of parts. This aftermarket replacement part references CAT as the OE maker and cross-references part number CT0055317. The part type is a retaining ring, which functions as a removable fastener that seats in a groove to hold components in place. A common failure consequence is that a worn or broken retaining ring can cause unintended disassembly of the assembly. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT0055317, ct0055317