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
Elliot Miles –
Received my 2004 RAM ECM fully programmed and ready to install—setup was plug-and-play, and the free shipping was a nice bonus. Customer support was quick to answer my questions, making the whole process smooth and hassle-free.
Colin Miles –
I was really impressed with how smooth the process was from start to finish. The ECM arrived quickly, and the fact that it was VIN programmed and ready to install saved me a lot of hassle. Shipping was free, which was a nice bonus considering how bulky these parts can be. When I had a few questions about the setup, their team responded promptly and helped me figure out everything without any issues. My 2004 Cummins Ram is running like new again, and I couldn’t be happier with the quality and service provided.
Tyler Torres –
I ordered the 20325233AM ECM for my 2004 Ram Cummins and was really impressed by the plug-and-play setup. It arrived quickly with free shipping, which was a nice bonus. The programming was spot on, and it fired up without any issues. Definitely a hassle-free experience and great quality part.
Caleb Watson –
The ECM arrived quickly with free shipping and was programmed perfectly for my 2004 RAM. Setup was plug-and-play, couldn’t ask for a smoother process.
Excellent communication throughout the process, and the ECM worked flawlessly once plugged in. Highly recommend their professional programming service!
Got my updated PCM fast, and the shipping cost was very reasonable. The quality and fit were spot on, making installation hassle-free.