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
Daniel Edwards –
I was really impressed with how smooth the whole process was when ordering the ECM for my 2004 RAM Cummins. The ECU came VIN programmed, which made installation straightforward—no extra hassle on my end. Shipping was free and arrived quicker than I expected, which was a pleasant surprise. Whenever I had questions, their team was quick to respond and kept me informed every step of the way. Since swapping it in, my truck has been running better than ever.
Luke Lawrence –
Super fast turnaround and the VIN programming was spot on—started right up with no issues. Shipping was free too, which was a nice bonus.
Harvey Jenkins –
I was really impressed with how quickly this ECM arrived after placing my order. The shipping was fast, which was a relief since I needed my 2004 Ram back on the road ASAP. Installation was straightforward—the unit was truly plug-and-play and worked perfectly right out of the box. Compared to the dealer’s outrageous prices, this service saved me a ton of money without any compromise on quality. The communication from the seller was clear and helpful, making the whole process worry-free. Overall, a smooth experience and definitely recommended if you want a hassle-free repair.
Anthony Richardson –
I ordered the 20325251AB ECM for my 2004 Ram 5.9L Cummins and was really impressed with how smooth the whole process went. The ECU arrived quickly, and the fact that it was already VIN programmed saved me a ton of hassle. Shipping was free, which was a nice bonus and made the whole purchase feel even better. When I had a couple of questions before ordering, their team responded promptly and clearly, which gave me confidence. Installation was straightforward with their plug-and-play setup, and my truck runs like new again. Definitely a top-notch experience all around.
Carlos Stewart –
I’m very pleased with this ECM for my 2004 Ram with the Cummins engine. The unit arrived quickly, and installation was straightforward since it was truly plug-and-play. The communication from the seller was excellent throughout, and getting this done saved me a significant amount compared to dealer pricing. Everything runs perfectly, and I appreciate the smooth, hassle-free process.
Diego Hamilton –
Fast shipping and flawless plug-and-play setup made replacing my 2004 RAM ECM a breeze. Their communication was spot on throughout the entire process.
Keith Murray –
I was a bit nervous about ordering an ECM online, but this 20325251AB unit for my 2004 RAM Cummins arrived quickly and was exactly as described. The best part was that it came VIN programmed, so installation was straightforward with the plug-and-play setup—no extra trips to the shop needed. The team also kept me updated throughout the process, which gave me peace of mind. Since installing it, my truck runs smoother and the engine light hasn’t come back on. Overall, great quality and service that I’d definitely recommend to other Ram owners.
Cole Johnson –
Shipping arrived quickly and the ECM was truly plug-and-play. Saved me a bundle versus dealer pricing, and installation went without a hitch.
Logan Barrett –
I purchased the 20325251AB ECM for my 2004 RAM with the Cummins 5.9L, and it arrived quickly with free shipping, which was a nice bonus. The unit came VIN programmed and was truly plug-and-play, making installation straightforward without any extra hassle. The quality feels solid, and my truck runs smoothly now. Communication was also great—they kept me informed throughout the process and answered my questions promptly.
David Brooks –
After my 2004 RAM started having engine issues, I decided to order this ECM. The unit arrived quickly, and the best part was that it was already VIN programmed, so installation was a breeze. The shipping was surprisingly fast and free, which saved me some extra cost. The truck fired up right away, running smoother than it had in years. I also appreciated how the seller kept me informed throughout the process—it really made me feel confident about my purchase.
John Evans –
I recently purchased the 20325251AB ECM for my 2004 RAM Cummins, and I’m really impressed with how smooth the whole process was. The team provided professional programming service, so the unit was ready to go right out of the box—no additional setup required. Shipping was surprisingly fast and reasonably priced, and they kept me informed every step of the way. The engine runs perfectly now, and I couldn’t be happier with the quality and support.