B (S)Module Kit – GM (19431774)

a B from GM Genuine Parts, part S)Module Kit – GM (19431774, is a direct replacement for the unit fitted at the factory. It plugs into the factory harness and runs the system it was programmed for. Match S)Module Kit – GM (19431774 to the number on the failed component. Count the pins or check the connector keyway if two numbers look interchangeable. Shipped from our US warehouse with tracking.