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
Andrew Gonzalez –
The ECM arrived quickly with free shipping, and it was perfectly programmed for my 2004 Ram—fit and function were spot on.
Great experience—these guys answered all my questions fast and had the ECU ready with plug-and-play programming right out of the box.
Really impressed by the fast turnaround and the flawless programming on my 5.9L Cummins ECM; setup was a breeze.
Adrian Marshall –
I ordered the 15235133AI ECM for my 2004 RAM Cummins and was really impressed with how smooth the whole process went. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was the professional programming service they provided; the ECM was ready to go right out of the box, making installation a breeze. Throughout, their team kept me updated on the status of my order, which gave me confidence they knew what they were doing. Since installing it, my truck has been running perfectly, no hiccups at all. Highly recommend this company for anyone needing an ECU replacement.
Aaron Sanders –
I ordered the 2004 RAM Cummins ECM and was really impressed by how quickly it arrived, especially with the free shipping option. The unit came VIN programmed and ready to install, which made setup a breeze. The team also stayed in touch throughout the process, answering my questions promptly. Overall, the quality and service exceeded my expectations.
Colin Collins –
Super fast turnaround and the ECU came VIN programmed, ready to install right out of the box. Shipping was free and arrived exactly when promised.
Kevin Mitchell –
I was a bit nervous about replacing the ECM on my 2004 Ram with the Cummins engine, but this unit arrived already VIN programmed and ready to go, which made installation a breeze. The whole process was smooth thanks to the professional programming service they offer—no extra trips to a shop needed. Shipping was super fast and very reasonable, which was a nice surprise. Their team was also quick to answer my questions when I reached out, making me feel confident throughout the purchase. Overall, a great experience and my truck runs perfectly now.