ECM – GM (12742879)

GM Genuine Parts supplies this ECM under part number 12742879 as a factory-pattern replacement. Fitted in place of the original, it controls fuel and spark using the factory calibration and connector. Catalogue application notes: 5.5L, z06. 5.5L, zr1. Confirm the number on the part you are removing matches 12742879 before ordering; superseded numbers are the same component under a later release.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.