O-RING (Komatsu KO3EA-64-21330)

KO3EA-64-21330: A damaged retaining ring can allow components to separate during operation, leading to mechanical failure. The Komatsu catalog reference KO3EA-64-21330 identifies this aftermarket replacement part. This O-ring type retaining ring functions as a sealing element to prevent fluid or gas leakage between joined surfaces. A worn or broken retaining ring may cause gradual pressure loss, reducing system effectiveness over time. In routine service, a cracked retaining ring often results in visible seepage at the connection point. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO3EA-64-21330, ko3ea-64-21330, KO3EA6421330, ko3ea6421330