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




Mason Gray –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected. The unit came already VIN programmed and was completely plug-and-play, which made installation straightforward and hassle-free. The service was professional throughout, and I ended up saving a ton compared to the dealer’s quote. Overall, a smooth experience from start to finish.
Cooper Hamilton –
I purchased the 15235133AE ECM for my 2004 Ram with the 5.9L Cummins, and I’m really impressed with the quality and performance. The unit arrived quickly with free shipping, which was a nice bonus. The best part was that it came VIN programmed and ready to install—no extra hassle or additional tuning required. The truck fired up right away, and the communication from the seller was clear and helpful throughout the process.
Lucas Gonzalez –
Great quality ECM, arrived quickly with free shipping and was ready to plug in—had my Ram running smoothly in no time.
Harrison Harrison –
Fast shipping and the plug-and-play ECM made installation a breeze. Saved me a ton compared to dealer prices and the support was top-notch.
Austin Murray –
Arrived quickly with free shipping and was already VIN programmed—installed hassle-free and runs perfectly.
Great communication throughout the process and the programming service made this a true plug-and-play replacement.
Quality part with fast turnaround; they answered all my questions right away which made the whole experience stress-free.
Paul Carter –
I ordered the 15235133AE ECM for my 2004 RAM 5.9L Cummins and was impressed by how quickly it arrived with free shipping. The unit came VIN programmed and ready to install, which saved me a lot of time and hassle. The communication from the seller was excellent—they responded promptly to my questions and kept me updated throughout the process. Overall, a smooth experience with a quality product that fixed my truck perfectly.
Luis Smith –
I ordered the 15235133AE ECM for my 2004 Ram with the 5.9L Cummins, and I couldn’t be happier with how smoothly everything went. The unit arrived quickly with free shipping, which was a nice bonus. What really impressed me was that it came VIN programmed and ready to install—no extra hassle or trips to the shop. The truck fired right up and runs perfectly now. The seller kept me in the loop throughout the process, answering my questions promptly and making the whole experience stress-free. Highly recommend if you need a reliable replacement ECM.