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
Allan Watson –
I was really impressed with how smoothly the whole process went when I ordered the 15250153AC ECM for my 2004 Ram with the 5.9L Cummins. The unit arrived quickly with free shipping, which was a nice surprise. What stood out the most was the plug-and-play setup—they had the ECU programmed to my VIN before shipping, so installation was straightforward. Whenever I had questions about compatibility, their customer service responded promptly and helped me feel confident about my purchase. Since installing it, my truck runs better than ever, and I couldn’t be happier with the quality and service.
Nathan Wright –
Received my 2004 RAM ECM quickly with free shipping, and it worked perfectly right out of the box—very impressed with their plug-and-play programming!
Mark Wallace –
I ordered the 15250153AC ECM for my 2004 RAM Cummins and was really impressed by the plug-and-play setup. The unit arrived quickly with free shipping, which was a nice bonus. Installation was straightforward, and the engine runs smoother than before. Their team also responded promptly when I had questions, making the whole process hassle-free.
Hunter Page –
Super fast shipping and the ECM arrived perfectly programmed for my 2004 Ram Cummins—installation was a breeze!