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





Tyler Brooks –
Perfect fit and worked right out of the box; the plug-and-play programming saved me a ton of hassle. Shipping was super quick too!
Aiden Palmer –
I ordered the 12589462 ECM for my 2007 GMC Sierra and was impressed by how quickly it arrived with free shipping. The unit was already VIN programmed, so installation was straightforward and hassle-free. Customer service was very responsive, answering all my questions promptly. Overall, a solid experience with a quality product that fired up my truck right away.
Colin Morris –
Fast shipping and the plug-and-play unit worked perfectly, saving me a ton compared to dealer prices. Installation was smooth and the service was impressively professional.
Joel Reynolds –
I was really impressed with how quickly the ECM arrived after I placed my order, and it was ready to install right out of the box with no issues. The unit was already VIN programmed, so it was completely plug-and-play, which made the whole process super smooth. This saved me a ton of money compared to getting it replaced at the dealership, and their customer support was very responsive when I had questions. Overall, a great experience from start to finish.
Allan Barrett –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected, which helped me get my 2007 GMC Sierra back on the road in no time. The unit came VIN programmed and was completely plug-and-play, so installation was straightforward, even for a novice like me. Compared to the hefty price my dealer quoted for a replacement, buying this module online saved me a significant amount of money. The communication from the seller was clear and professional, and they made sure I had all the info needed before I installed it. Overall, a smooth experience that kept my truck running perfectly without breaking the bank.