Description
2014 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 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
Adam Page –
I ordered the 12672965 ECM for my 2014 GMC Sierra and was really impressed by how smooth the whole process was. The unit arrived quickly with free shipping, which was a nice bonus. They also programmed the ECU to my VIN before shipping, so installation was completely plug-and-play. Overall, the quality and service exceeded my expectations, and my truck runs like new again.
Samuel Rogers –
Fast shipping and the plug-and-play unit worked perfectly, saving me a ton compared to dealer pricing. Installation was seamless and the support team was very responsive.
Samuel Taylor –
Received my 2014 GMC Sierra ECM quickly with free shipping, and the plug-and-play setup was flawless—runs like new!
Steven Moore –
I had a great experience ordering the ECM for my 2014 GMC Sierra. The unit arrived quickly and was already VIN programmed, which saved me a ton of hassle. What really stood out was how easy the plug-and-play setup was—no complicated installation or extra programming on my end. The shipping was very reasonable too, which made the whole process feel even smoother. They also answered all my questions promptly, so I felt confident about the purchase throughout. Definitely a reliable source for replacement engine control modules.