The Komatsu 20J0611540 is a genuine OEM work lamp switch designed for various Komatsu heavy machinery. This essential electrical component controls the work lamps, ensuring proper illumination during operation. It is compatible with a wide range of Komatsu excavators, wheel loaders, motor graders, dozers, and articulated dump trucks, including PC-8 series excavators, WA-6 series wheel loaders, GD-5 series motor graders, D-15 and D-AX series dozers, and HM-2 series articulated dump trucks.