Door Ajar Switch – GM (42778621)

This Door Ajar Switch (42778621) from GM Genuine Parts replaces the original part on the same mounting points and connector. In service it replaces a switch with pitted contacts or a broken actuator. Catalogue application notes: Charging port. Confirm the number on the part you are removing matches 42778621 before ordering; superseded numbers are the same component under a later release. GM Genuine Parts are the components installed during production or validated by General Motors for GM vehicles. Ships from our US warehouse.