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
Nathan Sharp –
Super fast shipping and the VIN programmed ECM fit perfectly in my 2004 Ram 5.9L. Setup was plug-and-play, couldn’t ask for more!
Anthony Lewis –
Great quality ECM, arrived quickly with free shipping and was fully programmed to my VIN—plug-and-play and hassle-free!
Adrian Bailey –
I purchased the 20325233AK ECM for my 2004 RAM Cummins, and the entire process was seamless. The unit arrived quickly with free shipping, which was a nice bonus. The best part was that it came fully VIN programmed, so installation was truly plug-and-play—no extra hassle or wait time. Customer service was very responsive, answering my questions promptly and making sure I was comfortable before finalizing the order.