Description
2007 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2007 GMC Sierra 4.3L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566




Justin Nelson –
The 12629018 ECM for my 2007 GMC Sierra arrived quickly and was exactly as described. Installation was straightforward since it came VIN programmed and truly plug-and-play, making the whole process much smoother than I expected. The price was significantly lower than what the dealer quoted, and the customer service kept me informed every step of the way. Overall, a great experience that saved me both time and money.
Eric James –
Fast shipping and the unit was truly plug-and-play. Saved me a bundle compared to dealer prices and installation was hassle-free.
Allan Cox –
Fast shipping and the ECU arrived perfectly programmed for my 2007 GMC Sierra. Setup was plug-and-play with no issues at all.