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




Liam Johnson –
I purchased the 15235113AF ECM for my 2004 RAM 5.9L Cummins and was impressed by how smoothly everything went. The unit arrived quickly with very reasonable shipping costs, which was a nice surprise. The plug-and-play setup made installation straightforward, and it fired right up with no issues. Customer support also kept me informed throughout the process, which gave me extra confidence in my purchase.
John Miller –
Fast shipping and the ECU came perfectly programmed for my 2004 Ram Cummins—installation was a breeze. The team kept me informed every step of the way, which I really appreciated.
Bruce Collins –
I recently purchased the 15235113AF ECM for my 2004 RAM Cummins, and I couldn’t be happier with the whole experience. The unit arrived quickly, and the free shipping was a nice surprise given the size of the part. What impressed me most was how the PCM came fully VIN programmed, so installation was truly plug-and-play. The truck fired right up with no hitches, and the engine runs smoother than it has in years. The seller also kept in touch throughout the process, answering my questions promptly, which made the whole transaction feel very trustworthy. Definitely a five-star experience from start to finish.
Eric Rogers –
I was nervous about replacing the ECM on my 2004 RAM with the Cummins engine, but this unit arrived VIN programmed and ready to install, which made everything so much easier. The shipping was surprisingly quick and free, which was a nice bonus. After installation, my truck fired right up with no issues at all. The communication from the seller was excellent—they kept me updated throughout the process and answered my questions promptly. Overall, this was a smooth experience from start to finish.
Elijah Howard –
I was impressed with how quickly the ECM arrived—shipping was definitely faster than I expected. The unit came fully VIN programmed and was truly plug-and-play; installation was straightforward with no hiccups. Choosing this option saved me a significant amount compared to dealer pricing, and their communication throughout the process was clear and professional. Overall, a smooth experience that got my 2004 Ram running like new again.
Austin Scott –
Shipping was super fast and the ECU was truly plug-and-play. Saved me a bundle compared to dealer prices and installation went without a hitch.