Harness – GM (42940377)

Part 42940377 is the GM Genuine Parts Harness for the factory location it serves. Fitted in place of the original, it routes power and signal between the factory connectors it plugs into. Catalogue application notes: With at4, 2nd design. Confirm the number on the part you are removing matches 42940377 before ordering; superseded numbers are the same component under a later release.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. Held in US stock for same-week dispatch.