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



Carlos Sharp –
I needed a replacement ECM for my 2004 RAM Cummins and this unit fit perfectly. The VIN was already programmed, which made installation straightforward with no extra hassle. Shipping was surprisingly quick and free, so I didn’t have to worry about any additional costs. The whole process was smooth, and the truck runs like new again.
Paul Murphy –
Arrived quickly and was completely plug-and-play; saved me a ton compared to dealer prices. Installation was smooth, and their communication made the whole process hassle-free.
Jason Brown –
Super fast shipping and the ECU arrived perfectly programmed for my 2004 RAM Cummins—plug-and-play was exactly as promised.