Description
2004 RAM Ram Truck (Cummins) 5.9L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 RAM Ram Truck (Cummins) 5.9L 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



Jose Cooper –
Fast shipping and the ECM arrived perfectly programmed for my 2004 Cummins—installation was a breeze.
Trevor Ramirez –
Shipping was super fast and the ECM was truly plug-and-play, saving me a bundle compared to dealer prices. Installation went smooth and their support was spot-on throughout.
Cooper Smith –
I was really impressed with how quickly this ECM arrived after I ordered it. The unit came already VIN programmed, which made installation incredibly easy—I just unplugged the old one and plugged this in, no hassle at all. It saved me a ton compared to the dealership’s pricing, and the whole process felt so smooth from start to finish. The seller was great to communicate with, answering all my questions promptly. Overall, a fantastic experience that got my 2004 Ram back on the road without breaking the bank.
Neil Bates –
I was really impressed with how quickly this ECM arrived, definitely faster than I expected. The unit was truly plug-and-play, making the installation process straightforward without any issues. Their team was very responsive and professional, which made the entire experience hassle-free. Overall, this saved me a ton compared to dealer prices and got my 2004 Ram running perfectly again.