KEY SET (Komatsu KO3EB-55-11581)

A worn key set can prevent an ignition switch from turning, leaving equipment unable to start. This aftermarket replacement part references Komatsu catalog number KO3EB-55-11581. The key set includes the physical keys and the lock cylinder mechanism. A common failure consequence is the key becoming stuck or failing to engage the switch tumblers. During a startup attempt, a damaged key set may cause the ignition to feel loose or unresponsive. Verify the serial number or application, then call (562) 693-7748. The part type generally controls electrical access to the starting circuit.

Part number variants: KO3EB-55-11581, ko3eb-55-11581, KO3EB5511581, ko3eb5511581