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



Owen Harrison –
I purchased the 20325233AB ECM for my 2004 RAM Cummins, and the whole process was seamless. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was that it came VIN programmed and ready to install—no hassle or extra trips to a shop. Their team answered all my questions promptly, making the experience stress-free.
Samuel Adams –
I was really impressed with how quickly this ECM arrived—it only took a couple of days to get to my door. Installation was straightforward since it came pre-programmed for my 2004 RAM Cummins, making it truly plug-and-play. I had previously gotten quotes from the dealer that were way out of my budget, so going this route saved me a ton of money without sacrificing quality. The whole process was smooth, and the seller kept in touch throughout, which gave me confidence. My truck is running perfectly now, and I couldn’t be happier with the service I received.
Nicholas Cook –
I purchased the 20325233AB ECM for my 2004 Ram Cummins and was really impressed by how smoothly everything went. The unit arrived quickly with free shipping, which was a nice bonus. The best part was that it came VIN programmed, so installation was straightforward and it fired up without any issues. I also appreciated the prompt responses to my questions throughout the process.
Benjamin Wilson –
Received my 20325233AB for my ’04 Ram quickly with free shipping, and it arrived perfectly programmed—made the swap hassle-free!
Samuel Torres –
The VIN programmed ECM arrived quickly with free shipping, and it worked perfectly right out of the box—very happy with the seamless experience.
Great communication throughout the process, and the plug-and-play setup made installing this ECM on my 2004 RAM a breeze.
Fast turnaround and the unit was already programmed to my VIN, saving me a ton of hassle—highly recommend their professional service.
Aiden Nichols –
I ordered the 20325233AB ECM for my 2004 Ram with the Cummins 5.9L, and I couldn’t be happier with the whole experience. The unit arrived quickly with free shipping, which was a nice bonus. What really impressed me was their professional programming service — the ECU came perfectly programmed to my VIN, so installation was straightforward and hassle-free. Throughout the process, their team stayed in touch and answered all my questions promptly, which gave me confidence in what I was buying. Since installing the ECM, my truck runs smoother than ever.
Jordan Watson –
I was really impressed with how quickly this ECM arrived—it made the whole process so much easier. The unit came pre-programmed for my 2004 RAM 5.9L Cummins, so installation was straightforward and completely plug-and-play. Choosing this service saved me a huge amount compared to dealer prices, and their communication throughout was clear and professional. Everything worked perfectly from the start, and the turnaround time was excellent.
Jason Bell –
Fast shipping and the unit was truly plug-and-play—saved me a bundle over dealer prices. Installation was smooth and the communication was spot on throughout.