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
Jonah Miller –
Fast shipping and the plug-and-play setup made replacing my 2004 RAM’s ECM a breeze. Saved a ton compared to dealer prices and the communication was top-notch.
Paul Cooper –
I was pretty stressed about getting my 2004 RAM’s ECM replaced, but this unit arrived quickly and was already VIN programmed, which made installation a breeze. The plug-and-play setup saved me a ton of time and hassle compared to what I expected. Shipping was surprisingly fast and didn’t cost an arm and a leg, which I really appreciated. They also kept me posted every step of the way when I reached out with questions, so I felt confident throughout the process. Overall, this was an excellent experience and my truck runs perfectly now.
Samuel Foster –
The ECM arrived quickly with free shipping, and the plug-and-play setup made installation a breeze. Communication was spot-on throughout the entire process.
John Sharp –
I ordered the 4090071 ECM for my 2004 Ram 5.9L Cummins and was really impressed with the entire process. The unit arrived quickly with free shipping, which was a nice bonus. They handled the VIN programming professionally, so it was pretty much plug-and-play once it arrived. The engine runs perfectly now, and I appreciate how smoothly everything went from start to finish.