Description
2014 Chevrolet Silverado 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 Chevrolet Silverado 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
Zachary Cooper –
I’m really impressed with this ECM for my 2014 Silverado 4.3L. The shipping arrived quicker than I expected, and the unit was truly plug-and-play, making installation a breeze. I saved a ton compared to dealer pricing, and their team was very responsive and professional throughout the process. It’s been working flawlessly so far, and I couldn’t be happier with the overall experience.
Elijah Sharp –
The plug-and-play unit arrived fast and worked perfectly, saving me a ton compared to the dealer. Great service and smooth install made everything hassle-free.
Bruce Green –
The VIN programmed ECM arrived quickly with free shipping, and it fired up my Silverado without a hitch. Excellent communication throughout made the whole process smooth and stress-free.
Steven Payne –
I was nervous about replacing the ECM on my 2014 Silverado, but this unit arrived VIN programmed and ready to go, which made the whole process so much smoother. The shipping was super quick and free, which was a nice surprise. I appreciated how the team kept me in the loop from order to delivery, answering my questions promptly. Installation was straightforward, and the engine runs perfectly now with no warning lights. Definitely a reliable source for anyone needing an updated ECM.
Frank Rogers –
I had been struggling with my 2014 Silverado’s engine issues for weeks, and ordering this ECM was a game-changer. The unit arrived quickly, and what stood out most was how well it was already programmed to my VIN—made installation a breeze with no extra steps required. The team was very communicative throughout the process, answering all my questions promptly and keeping me in the loop. After swapping it in, my truck runs smoother than it has in years. Definitely worth every penny for the hassle-free experience.
Austin Mitchell –
I purchased the 12662034 ECM for my 2014 Silverado 4.3L and was very impressed with the whole process. The unit arrived quickly with free shipping, which was a nice bonus. The programming was done professionally, so it was truly plug-and-play and saved me a ton of hassle. Their team also responded promptly when I had a few questions, making the experience smooth from start to finish.