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
Dominic Carter –
I had been struggling with engine issues on my 2004 RAM Cummins, so I decided to order the 20325233AH ECM. The whole experience was smooth from start to finish—what really stood out was how quickly they programmed the unit to my VIN and shipped it out with no extra cost for delivery. Installation was straightforward, and the truck runs better than it has in years. The team was also very responsive when I had a couple of questions before buying, which gave me confidence in the purchase. Overall, this was a solid investment that saved me time and hassle.
Cole Clark –
I was a bit nervous ordering an ECM online for my 2004 RAM 5.9L Cummins, but the whole process was much smoother than I expected. The team provided professional VIN programming right out of the box, so it was essentially plug-and-play once I got it installed. Shipping was surprisingly fast and affordable, which was a big help since I needed the truck back on the road quickly. They also kept me in the loop the entire time, answering my questions promptly and clearly. Overall, the quality of the unit and service exceeded my expectations.
Allan Lawrence –
The ECU arrived quickly with free shipping, and the plug-and-play setup was flawless—had my truck running like new in no time.
Great communication throughout the process and the professional programming service made installation a breeze on my 2004 Ram.
Fast turnaround and the VIN was perfectly programmed; really impressed with the quality and how responsive the team was.
Shipping was super affordable and the ECM worked perfectly right out of the box, saving me a ton of hassle.
They answered all my questions promptly and provided expert programming, which made this purchase totally stress-free.
Miguel Hill –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2004 RAM, making installation a breeze. Communication was spot on, keeping me informed every step of the way.
Robert Cooper –
I was impressed with how quickly this ECM arrived, especially with the free shipping option they provided. The unit was already VIN programmed, which made installation straightforward and hassle-free. The communication was top-notch as well; they kept me informed every step of the way. My truck runs perfectly now, and I couldn’t be happier with the quality and service.