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



Bruce Turner –
I was really impressed with how quickly this ECM showed up after my order. It was fully VIN programmed and worked right out of the box—no complicated setup needed. Installing it was straightforward, and the whole process saved me a ton compared to dealer prices. The customer support was helpful and kept me updated throughout, which made the experience even better.
Chase Campbell –
Fast shipping and the ECU arrived perfectly programmed—installation was a breeze and my truck runs like new.
Neil Tucker –
Arrived quickly with free shipping and worked perfectly right out of the box—huge time saver. Their communication was spot on, answering all my questions promptly.
Lucas Scott –
Fast shipping and the plug-and-play unit worked perfectly in my 2004 RAM Cummins. Saved me a ton compared to dealer prices with smooth, hassle-free service.
Frank Douglas –
I ordered the 20325253AH ECM for my 2004 Ram 5.9L Cummins and was really impressed with how smooth the whole process was. The unit came VIN programmed and ready to install, which saved me a ton of time and hassle. Shipping was fast and free, and the team kept me informed every step of the way. The truck runs great now, and I couldn’t be happier with the service and quality.