Harness – GM (20817478)

The GM Genuine Parts Harness listed here carries part number 20817478 and installs where the original was removed. It replaces a chafed or water-damaged section of the body or engine loom. Confirm the number on the part you are removing matches 20817478 before ordering; superseded numbers are the same component under a later release.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. Shipped from our US warehouse with tracking.