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: 647-247-8555
Ryan Poole –
I ordered the 3976873 ECM for my 2004 RAM 5.9L Cummins and was really impressed with how quickly it arrived. The unit was truly plug-and-play, making installation a breeze compared to the hassle I expected. The team communicated well throughout the process and saved me a significant amount compared to dealer pricing. Overall, a smooth experience from ordering to getting my truck back on the road.
Robert Moore –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Ram 5.9L — super easy plug-and-play setup.
Edward Richardson –
Shipping was super fast and the unit was truly plug-and-play. Saved me a bundle compared to dealer prices, and installation went smoothly thanks to their clear communication.