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 for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



David Green –
I purchased the 15250150AG ECM for my 2004 RAM with the 5.9L Cummins, and I’m really impressed with the quality. The unit arrived quickly with free shipping, which was a great bonus. What stood out was how smoothly the plug-and-play setup went — my truck fired right up without any hiccups. The entire process was hassle-free, and their team was very responsive when I had a few questions.
Jose Cox –
Fast shipping and the plug-and-play programming made installation a breeze on my 2004 Ram Cummins. Couldn’t be happier with the quality!
Owen Miller –
I was really impressed with the professionalism of the programming service that came with this ECM for my 2004 RAM. The unit was VIN programmed perfectly, so installation was completely straightforward—just plug and play. Shipping was very reasonable and arrived faster than I expected. The customer support team answered my questions quickly, which made the whole process much smoother.
Hunter Young –
Fast shipping and the ECU arrived perfectly programmed for my 2004 Cummins—installation was a breeze. Their team answered all my questions quickly, making the whole process smooth and stress-free.
Jacob Lopez –
I was a bit nervous about ordering an ECM online for my 2004 Ram Cummins, but this experience exceeded my expectations. The unit came VIN programmed and ready to install, which saved me a lot of hassle. Shipping was surprisingly quick and didn’t cost an arm and a leg. The install was straightforward, and my truck fired up right away with no issues. They also kept me informed throughout the process, answering my questions promptly and making the whole thing stress-free. Definitely a solid choice if you need a reliable ECM.