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




Jacob Hudson –
I was really impressed with how quickly the ECM arrived after ordering—shipping was faster than I expected. The unit was completely plug-and-play, which made installation a breeze even though I’m not a mechanic. The VIN programming was spot on, and the customer service was very responsive throughout the process. Overall, this saved me a ton compared to dealer prices and got my 2004 RAM running like new again.
Zachary Baker –
Fast shipping and the ECU came fully programmed for my 2004 RAM Cummins—plug-and-play was exactly as promised. The team kept me informed the whole way, which made the process smooth and stress-free.
Robert Watson –
Fast shipping and the plug-and-play setup made installing the ECM a breeze. Saved me a bundle compared to dealer prices with professional service all the way through.
Frank Roberts –
I was really impressed with how smooth everything went ordering the 15305151AB ECM for my 2004 RAM Cummins. The ECU came VIN programmed and ready to install, which saved me a lot of hassle. Shipping was free and surprisingly fast, arriving sooner than I expected. The quality of the part feels solid and my truck runs perfectly now without any check engine lights. Whenever I had questions before purchasing, the customer service responded quickly and explained the process very clearly. Overall, a hassle-free experience that got my truck back on the road in no time.
Hunter Walker –
I had a rough time finding a replacement ECM for my 2004 RAM Cummins, but this one fit perfectly and came VIN programmed, which saved me a ton of hassle. The best part was the quick shipping — it arrived way faster than I expected, and without any extra fees. Installation was straightforward since it was ready to go right out of the box. I also appreciated how the seller stayed in touch throughout the process and answered all my questions promptly. My truck is running smoother than ever now, and I couldn’t be happier with the whole experience.
Scott Bailey –
I was really impressed with the quality of the ECM I received for my 2004 Ram 5.9L Cummins. The unit arrived quickly, and the fact that it was VIN programmed saved me a lot of hassle—just plug and play. Customer support was very responsive when I had questions, which made the whole process much smoother. Shipping was free and fast, which was a nice bonus.
Joel Rivera –
I recently purchased the 15305151AB ECM for my 2004 RAM 5.9L Cummins, and I couldn’t be happier with how everything turned out. The unit arrived much faster than I expected, which was a huge relief since my truck was down. Installation was straightforward—just plug-and-play—and my truck fired right up without any issues. This saved me a ton compared to dealer prices, and the team was very responsive when I had questions. Overall, the process was smooth and professional, and I highly recommend this service to anyone needing a quick fix.