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
Caleb Richardson –
I was really impressed with how smooth the entire process was when ordering this ECM for my 2004 Dodge Ram 5.9L. The unit came VIN programmed, so installation was practically plug-and-play, which saved me a lot of hassle. Shipping was free and arrived faster than I expected. Throughout the process, the seller kept me informed with updates and was quick to answer my questions about compatibility. Once installed, my truck runs perfectly, just like new. Great product and excellent service all around!
John Jenkins –
The VIN programmed ECM arrived quickly with free shipping, and it worked perfectly in my 2004 Ram Cummins—highly recommend.
Brian Phillips –
I purchased the 15235113AG ECM for my 2004 RAM Cummins and was really impressed with how smooth the whole process was. They offer a professional programming service that had the unit VIN programmed perfectly before shipping, so it was truly plug-and-play once it arrived. Shipping was fast and very reasonable, and their team kept me informed every step of the way. The truck runs great now, and I wouldn’t hesitate to buy from them again.
Colin Cox –
Received my VIN programmed ECM quickly with free shipping—installation was seamless and the truck runs perfectly now.