Harness – GM (86789820)

Part 86789820 is the GM Genuine Parts Harness for the factory location it serves. In service it replaces a chafed or water-damaged section of the body or engine loom. Catalogue application notes: 2025. Confirm the number on the part you are removing matches 86789820 before ordering; superseded numbers are the same component under a later release.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.