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



Max Poole –
I’m really impressed with the quality of the 15305151AG ECM for my 2004 RAM 5.9L Cummins. The unit arrived quickly and was truly plug-and-play, making installation hassle-free. The entire process was straightforward, and the team’s communication was excellent throughout. This service saved me a ton compared to dealer prices, and my truck runs like new again.
Kyle Lawrence –
I was really pleased with the 15305151AG ECM for my 2004 Ram 5.9L Cummins. The shipping arrived faster than I expected, which was a relief since my truck was down. When I got the unit, it was fully VIN programmed and ready to go—just plugged it in, and everything fired up perfectly. Installing it was straightforward, and the team was very responsive when I had a couple of questions beforehand. Opting for this instead of the dealer saved me a huge chunk of money, and I wouldn’t hesitate to recommend their service to anyone in need of a reliable ECM replacement.
Isaac Douglas –
Great product with fast turnaround and professional VIN programming—started right up with no issues. Shipping was free and arrived quickly, too!
Caleb Smith –
Fast shipping and the unit was truly plug-and-play, saving me a bundle versus dealer prices. Installation was seamless, and their communication made the whole process a breeze.