MK420430
Door Lock Switch
Mitsubishi FUSO®

The Door Lock Switch (part number MK420430) is an electrical component found in trucks that controls the locking and unlocking of the doors. It is typically located on the driver's side door panel and can be activated with a simple push or pull motion. The switch sends a signal to the truck's central locking system, which then engages or disengages the locks on all doors simultaneously. Some switches may also have additional features such as power window controls or remote keyless entry functions. A faulty door lock switch can cause issues with door locking and unlocking, so it is important to have it checked and replaced if necessary to ensure proper functionality and security of the vehicle.