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
Adam Barrett –
Received my ECM quickly with free shipping, and it was perfectly programmed for my 2004 Ram 5.9L—runs like a charm!
Russell Richardson –
Fast shipping and a completely plug-and-play ECM that saved me a ton compared to dealer prices—installation was a breeze and the whole process was seamless.
Frank Marshall –
I was a bit nervous ordering a replacement ECM for my 2004 RAM Cummins, but this unit arrived exactly as described and was already VIN programmed, which saved me a ton of hassle. The plug-and-play setup meant I didn’t have to mess around with any complicated coding—just install and go. Shipping was surprisingly quick and free, which was a nice bonus. The truck runs smoothly now, and I’ve had no issues since installation. The whole experience was straightforward and professional.
Michael Barrett –
I purchased the 20325231AJ ECM for my 2004 Ram with the 5.9L Cummins, and I’m very satisfied with how smoothly the whole process went. The unit arrived quickly with free shipping, which was a nice bonus. What really stood out was their professional programming service—they had my VIN perfectly programmed and ready to go, so installation was plug-and-play. The engine has been running great ever since, and I appreciated their prompt responses whenever I had questions.