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
Jordan Ward –
I purchased the 15235133AH ECM for my 2004 Ram Cummins and was very impressed with the plug-and-play setup. They had the unit VIN programmed before shipping, which made installation straightforward and hassle-free. Shipping was quick and affordable, and their customer service kept me updated throughout the whole process. The engine is running perfectly now with no issues.
Henry Graham –
Super fast shipping and the ECU arrived perfectly programmed for my 2004 Ram Cummins. Setup was a breeze, couldn’t be happier!
Daniel Allen –
The ECU arrived quickly with free shipping and was already VIN programmed for a perfect plug-and-play installation—highly recommend!
John Reynolds –
I purchased this ECM for my 2004 RAM Cummins and was really impressed with the whole experience. The unit arrived quickly with free shipping, which was a nice bonus. The plug-and-play setup made installation straightforward, and the engine runs perfectly now. Customer service was excellent too, answering all my questions promptly and keeping me in the loop throughout.