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: 647-247-8555



Spencer Peterson –
Fast shipping and the plug-and-play programming made installation a breeze on my 2004 Ram with the Cummins engine. Highly recommend!
Jacob Green –
I was really impressed with how quickly the ECM arrived after I ordered it—shipping was definitely fast. The unit was perfectly programmed to my VIN and installed without any issues, making the whole process hassle-free. This saved me a ton compared to dealer prices, and the customer support was responsive and professional throughout. Overall, a smooth experience from start to finish.
Allan Sanders –
I was impressed with how quickly the updated ECM arrived, and the fact that it came VIN programmed saved me a lot of hassle. The plug-and-play setup made installation straightforward, and my 2004 Ram 5.9L is running perfectly again. Shipping was free and very prompt, which was a nice bonus on top of the solid product quality.
Allan Campbell –
Shipping was super quick, and the unit was completely plug-and-play. Saved me a ton compared to dealer prices and the installation went without a hitch.