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
Daniel Wallace –
I ordered the 20325251AK ECM for my 2004 RAM with the 5.9L Cummins, and the whole process was smooth from start to finish. They programmed the unit to my VIN before shipping, so installation was truly plug-and-play—no extra trips to a tuner needed. Shipping was also very reasonable, and the module arrived well-packaged and quickly. This made a noticeable difference in how my truck runs, and I’m very satisfied with the quality and service.
Daniel Rivera –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Cummins—plug-and-play made installation a breeze. Excellent communication throughout the process kept me confident every step of the way.
Luke Webb –
I ordered the 20325251AK ECM for my 2004 RAM 5.9L Cummins and was really impressed with how quickly it arrived. The unit was completely plug-and-play, which made the installation process straightforward and hassle-free. Compared to the dealer’s quote, this saved me a significant amount of money, and the communication from the seller throughout was clear and helpful. Once installed, my truck ran perfectly without any issues. Overall, the professional service and fast shipping made this a great experience.
Dominic Clark –
I’m really impressed with this ECM for my 2004 RAM Cummins. The unit arrived quickly and was truly plug-and-play, making installation hassle-free. Compared to the dealer’s price, this service saved me a significant amount of money while still providing a perfectly programmed module. Communication was clear throughout, and the whole process was smooth from start to finish.
Hunter Willis –
Fast shipping and the unit was truly plug-and-play. Saved me a ton compared to dealership prices and installation went without a hitch.