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




Trevor Nichols –
Exactly what I needed for my ’04 Cummins, arrived fast with free shipping and worked perfectly right out of the box. The plug-and-play setup saved me a ton of hassle!
Zachary Collins –
I was really impressed with how quickly the ECM arrived after I placed my order—shipping was definitely faster than I expected. Installation was straightforward since the unit was plug-and-play, which made the whole process much less stressful. The fact that it was VIN programmed saved me a ton of time and hassle. Compared to the dealer quotes I got, this service was a fraction of the cost, which really helped keep my budget intact. The seller was also very responsive and helpful when I had questions, making it a smooth experience from start to finish. Overall, I’m very happy with the product and the service provided.
Travis Cooper –
The ECM arrived quickly and was truly plug-and-play, saving me a bundle versus dealer prices. Installation was straightforward, and their communication made the whole process hassle-free.
Aaron Webb –
I was really impressed with how quickly this ECM arrived after I placed the order. The unit came fully VIN programmed and was truly plug-and-play, which made the installation straightforward and hassle-free. Compared to the dealer’s price, this saved me a significant amount of money without sacrificing quality. The communication from the seller was clear and professional, making the whole process smooth from start to finish.
Logan Roberts –
I recently purchased the 20325251AL ECM for my 2004 Ram Cummins, and I couldn’t be happier with the service. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was how well the team communicated throughout the entire process—they kept me informed every step of the way and answered all my questions promptly. Installation was straightforward thanks to the VIN programmed setup, so it was truly plug-and-play. Since swapping out the ECM, my truck runs smoother and more efficiently than before. Overall, a great experience from start to finish.
Jonah Green –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Ram 5.9L—couldn’t ask for a smoother install. The team kept me informed every step of the way, which made the whole process stress-free.
Grant Cook –
I ordered the 20325251AL ECM for my 2004 RAM Cummins, and the whole process was smooth and hassle-free. The unit arrived quickly with free shipping, which was a pleasant surprise. They took care of the VIN programming, so it was truly plug-and-play when it arrived. Communication was great too—they kept me informed every step of the way, making the purchase very reassuring.