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.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Chase Murphy –
Fast shipping and the unit was truly plug-and-play, making installation a breeze. Saved me a ton compared to dealer prices and their support was top-notch.
Miguel Phillips –
I was really impressed with how smoothly everything went with this 2004 RAM ECU. The team provided a professional programming service that made installation a breeze—just plug and play, exactly as promised. The shipping was surprisingly fast and free, which was a nice bonus. I had a few questions before ordering, and their customer support answered quickly and clearly, making me feel confident in my purchase. After installing it, my truck ran flawlessly with no hiccups. Overall, great quality and excellent service.
Scott Collins –
I was really impressed with how smoothly everything went with this ECM for my 2004 Ram Cummins. The unit arrived quickly, and the fact that it was VIN programmed saved me a ton of hassle. Their communication stood out too—they answered all my questions promptly and made sure I knew exactly what to expect. Installation was straightforward, and the truck fired up perfectly right away. Overall, a great experience from start to finish.
Cole Burton –
I recently purchased the 4937150 ECM for my 2004 RAM 5.9L Cummins and was really impressed with how quickly it arrived. The unit was truly plug-and-play, making installation much easier than I expected. I saved a significant amount compared to dealer prices, which was a huge relief. The communication from the seller was clear and professional throughout the process, and everything went smoothly without any hiccups. It’s great to find a reliable option that works perfectly and saves both time and money.
Michael Cox –
I purchased the 4937150 ECM for my 2004 RAM 5.9L Cummins and was really impressed with the whole experience. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was the professional VIN programming service—they had it ready to go without any extra hassle. The quality of the part feels top-notch, and my truck runs smoother than ever.
Tyler Miles –
Received my programmed ECM quickly with free shipping, and it was a perfect plug-and-play fit—highly recommend their service!
Mason Willis –
I was really impressed with how quickly the ECM arrived after I placed my order, and it was truly plug-and-play with no issues during installation. The VIN programming was spot on, and it saved me a significant amount compared to dealer prices. Communication from the seller was clear, which made the whole process stress-free. Overall, a professional service that I would recommend to anyone needing an ECU for their 2004 RAM.