KEY - IGNITION (Komatsu KO3EB-55-11580)

A worn ignition key can prevent the starting circuit from engaging. This aftermarket replacement part references the Komatsu catalog and cross-references part number KO3EB-55-11580. The key mechanically rotates the ignition switch cylinder to complete the electrical circuit. A common failure consequence is that the key may not turn or may break off inside the switch. During a no-start condition, a technician might check the key for wear or damage. Keeping a functional ignition key ensures the switch can be operated reliably. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO3EB-55-11580, ko3eb-55-11580, KO3EB5511580, ko3eb5511580