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



Luis Hudson –
The ECU arrived quickly with free shipping and worked perfectly right out of the box—exactly what I needed for my 2004 Ram. The programming was spot on, no issues at all.
Ethan Morris –
Fast shipping and the unit plugged right in with no hassle. Saved a ton versus dealer prices and the whole process was straightforward and quick.
Jordan Cook –
I was really impressed with how quickly this ECM arrived after I placed my order. The shipping was faster than I expected, which was a relief because my truck was out of commission. Installation was straightforward since the unit was plug-and-play, and it fired up right away without any issues. The best part was definitely the price—it saved me a ton compared to going through the dealer. The team behind this product was also very responsive when I had a couple of questions, making the whole experience smooth from start to finish. Definitely a hassle-free solution for anyone needing an ECU replacement for their 2004 Ram Cummins.
Tyler Brown –
I was impressed with how quickly the ECM arrived after I placed my order. The unit was truly plug-and-play, making installation straightforward without any headaches. This purchase saved me a significant amount compared to dealer prices, and the communication from the seller was clear and helpful throughout the entire process. Overall, a smooth experience that got my 2004 Ram Cummins running perfectly again.