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



Matthew Lewis –
Super fast shipping and the plug-and-play setup made installing the ECM on my 2004 RAM a breeze. Highly recommend!
Lucas Keller –
Fast shipping and a plug-and-play unit made installation a breeze. This service saved me a ton compared to dealer prices—highly recommend!
Patrick Adams –
I’m really impressed with how quickly this ECM arrived, and it was truly a plug-and-play replacement for my 2004 RAM 5.9L Cummins. Installation was straightforward with no complications, which saved me so much time and hassle. The communication from the seller was clear and professional throughout the process. Compared to the dealer’s price, this purchase saved me a significant amount, making it a great value overall.