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



Keith Keller –
I was impressed with how smoothly the whole process went. The ECU arrived quickly, and the fact that it came VIN programmed saved me a ton of hassle. I had a few questions about compatibility, and their team responded almost immediately with helpful, clear answers. The plug-and-play setup was really straightforward, and once installed, my Silverado ran like new again. Shipping was very reasonable too, which was an added bonus. Overall, a great experience from start to finish.
Jordan Turner –
I bought the 12658728 ECM for my 2014 Chevy Silverado and was really impressed with how professional the programming service was. The unit came VIN programmed and ready to install, which saved me a lot of time and hassle. Shipping was quick and very affordable, and the communication throughout the process was clear and helpful. Overall, it worked perfectly right out of the box.
Dylan Phillips –
Received my programmed ECM quickly with free shipping, and it worked perfectly right out of the box. Great service and fast turnaround!
Aaron Page –
I was really impressed with how quickly the ECM arrived after I ordered it, and it was truly plug-and-play with no hassle during installation. The VIN programming was spot on, making the whole process very smooth. Compared to the dealer’s quote, this service saved me a significant amount of money. Communication was clear, and I felt well taken care of throughout the purchase.
Scott Poole –
I was really impressed with how quickly this ECM showed up after I placed the order. The unit came VIN programmed and ready to go, which made the installation seamless—no headaches or complicated steps at all. My Silverado started right up after swapping the old module, and everything runs perfectly now. The customer support was easy to reach and answered all my questions promptly, making the whole process smooth from start to finish. Choosing this over a dealer replacement saved me a ton of money and some serious downtime, so I’m very happy with the purchase.
Elliot Carter –
I ordered the 12658728 ECM for my 2014 Silverado and was really impressed with how smooth the entire process went. The unit came VIN programmed and ready to install, which saved me a lot of hassle. Shipping was surprisingly fast and didn’t cost an arm and a leg, which is always a bonus. The quality of the part is top-notch, and my truck has been running flawlessly since the replacement. They also kept me in the loop with updates on my order, which I appreciated. Definitely a reliable source for ECU replacements.
Elliot Webb –
The ECM arrived quickly and was truly plug-and-play, saving me a bundle compared to dealer prices. Installation was seamless and the communication was excellent throughout.