Engine Control Module (ECM) – GM (12733913)

GM Genuine Parts builds this Engine Control Module to the same footprint as the original; the catalogue number is ECM) – GM (12733913. The unit replaces a module that has lost communication or an output driver. Catalogue application notes: 6.6L diesel. Match ECM) – GM (12733913 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.