Description
2009 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 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
Victor Collins –
Received the 12629009 ECM super fast, plugged it in with zero hassle, and saved a ton compared to dealer prices—great service all around.
Travis Hudson –
Received my 2009 GMC Sierra ECM quickly with free shipping, and it was perfectly programmed for my VIN—installed without a hitch. Their team answered all my questions right away, making the whole process smooth and stress-free.
Carlos Lopez –
I purchased the 12629009 ECM for my 2009 GMC Sierra 4.3L and was impressed by how smoothly everything went. The unit arrived quickly with free shipping, and it came VIN programmed, so installation was hassle-free. The communication from the seller was top-notch—they answered all my questions promptly and kept me updated throughout the process. This definitely made what could have been a stressful repair straightforward and worry-free.
Trevor Wallace –
I was a bit nervous about ordering an ECM online, but this 2009 GMC Sierra 4.3L unit arrived exactly as described and was already programmed to my VIN, which saved me a lot of hassle. The team’s communication was impressive—they promptly answered all of my questions and kept me informed every step of the way. Shipping was free and surprisingly fast, especially for a part this specialized. Once installed, my truck fired up without any issues and runs smoothly now, just like new. Overall, a seamless experience from start to finish.
Noah Allen –
I was really impressed with how quickly the 12629009 ECM arrived—shipping was faster than I expected. The unit came fully programmed and was a true plug-and-play replacement for my 2009 GMC Sierra 4.3L. Installation was straightforward, and the whole process went smoothly without any hiccups. Choosing this option saved me a significant amount compared to dealer prices, and their customer support was helpful throughout.