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 Harrison –
I was really impressed with how quickly this ECM arrived after I placed my order. Installing the 20325231AD unit on my 2004 RAM Cummins was straightforward—it truly was plug-and-play with no complicated setup required. The vehicle fired up immediately, and everything runs perfectly now. What stood out most to me was the savings compared to the dealer’s price, which was nearly double. The communication throughout the process was clear and professional, making the whole experience stress-free. Definitely a smart choice for anyone needing a quality replacement without the hassle.
Harvey Murray –
The ECM arrived quickly and was truly plug-and-play, which made installation a breeze. Choosing this over the dealer saved me a ton, and their communication was spot-on throughout.
Cooper Johnson –
I was really impressed with how smoothly everything went ordering the 20325231AD ECM for my 2004 RAM Cummins. The unit came VIN programmed and ready to install, which saved me a ton of hassle. Shipping was surprisingly affordable, and it arrived much faster than I expected. When I had a couple of questions about compatibility, their team responded quickly and made sure I felt confident before buying. Since installing it, my truck runs like new again—definitely a quality repair and excellent service all around.
Frank Sharp –
I’m really impressed with this ECM for my 2004 RAM 5.9L Cummins. The fact that it came VIN programmed saved me a lot of hassle, making installation straightforward and plug-and-play. Shipping was free and arrived faster than expected, which was a pleasant surprise. The quality feels top-notch, and I haven’t had any issues since the swap.
Oliver Taylor –
Super fast shipping and the ECU came perfectly programmed for my 2004 Ram 5.9L—plug and play was exactly as promised.
Max Miles –
I’m really impressed with this ECM for my 2004 RAM Cummins. The shipping was surprisingly fast, and the unit arrived already VIN programmed, making installation completely plug-and-play. It saved me a ton compared to dealer pricing, and the whole process was smooth thanks to their clear communication. Definitely a professional service I’d recommend.
Scott Clark –
I was really impressed with how smoothly everything went with this ECM for my 2004 RAM 5.9L Cummins. The unit arrived quickly and the fact that it was already VIN programmed made the installation a breeze—just plug and play. Customer service was also great; they answered all my questions promptly and kept me informed throughout the shipping process. Definitely a reliable purchase.
Russell Nelson –
Got my ECM for the 2004 Ram quickly with free shipping, and the plug-and-play setup was flawless—highly recommend!