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
Cameron Chapman –
I was a bit nervous ordering an ECM online, but this 2014 GMC Sierra 4.3L unit arrived exactly as described and was already VIN programmed, which saved me a ton of hassle. The shipping was super reasonable and even arrived earlier than expected. I appreciated how the seller kept me informed throughout the process and promptly answered all my questions when I reached out. Installation went smoothly, and the engine has been running flawlessly ever since. Overall, very satisfied with the quality and service.
Travis Little –
I purchased the 2014 GMC Sierra 4.3L ECM from this seller and was impressed with their professional programming service. The unit arrived ready to install, which saved me a lot of time and hassle. Shipping was also very reasonable, and they kept me informed throughout the entire process. Overall, a smooth experience and great quality product.
Victor Scott –
Fast shipping and the plug-and-play unit worked perfectly—saved me a ton compared to dealer prices. Installation went smoothly with clear communication throughout.
Frank Torres –
The VIN programming was spot on and ready to install right out of the box—plus, the free shipping was a great bonus.
Fast turnaround and smooth plug-and-play setup made swapping the ECM in my 2014 Sierra a breeze.
Excellent communication throughout the process; they answered all my questions quickly and kept me in the loop.
Quality part and very reasonable shipping costs, definitely a hassle-free experience getting my truck back on the road.
The professional programming saved me a ton of time, and the ECM fit perfectly with no issues at all.