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




Jacob Morgan –
Fast shipping and super easy plug-and-play installation saved me big bucks versus dealer pricing—communication was spot on too.
Benjamin Carter –
Fast shipping and the VIN programming was spot on—my 2004 Cummins runs perfectly now. The whole process was smooth and hassle-free.
Owen Graham –
Fast shipping and the plug-and-play programming made installation a breeze—exactly what I needed for my 2004 Cummins. The whole process was seamless and hassle-free.
Brian Evans –
I was really impressed with how smoothly everything went with this ECM replacement. From the start, the team kept me informed and answered all my questions promptly, which made the whole process way less stressful. The unit arrived quickly with free shipping, and it was already programmed to my truck’s VIN, so installation was straightforward. Once installed, my 2004 RAM started right up and runs like new again. Definitely a solid experience and worth recommending to anyone needing a reliable ECM.
Owen Payne –
I purchased the 20325231AE ECM for my 2004 RAM Cummins and was really impressed with the plug-and-play setup. The unit arrived quickly with free shipping, and everything worked flawlessly right out of the box. Their customer support was also very responsive, answering all my questions promptly which made the whole process smooth and hassle-free. Definitely recommend for anyone needing a reliable ECM with professional VIN programming included.