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
Owen Lewis –
The ECM arrived quickly with free shipping and was programmed perfectly for my 2004 Ram Cummins—super easy plug-and-play installation. Customer service was responsive and kept me in the loop every step of the way.
Keith Hill –
Shipping was super fast and the ECM arrived ready to install—plug-and-play with zero hassle. Saved me a bundle compared to dealer prices and the whole process was seamless.
James Barrett –
I was a bit nervous about ordering an ECM online, but this 20325251AC unit for my 2004 RAM Cummins arrived quickly and was already VIN programmed, which made the installation a breeze. The plug-and-play setup meant I didn’t have to fiddle with any complicated steps, saving me time and frustration. I also appreciated how the seller kept me updated throughout the shipping process—it felt like I was dealing with real professionals who care about their customers. Since installing it, my truck runs smoother than ever. Definitely a reliable source I’d recommend to anyone needing ECU replacements.
Max Reynolds –
I ordered the 20325251AC ECM for my 2004 RAM Cummins, and I’m really impressed with the overall experience. The unit arrived quickly with free shipping, which was a nice surprise. They handled the VIN programming professionally, so installation was completely plug-and-play. I had a couple of questions before buying, and their customer service responded promptly, making the whole process smooth and stress-free.