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 for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Jeremy Turner –
I recently purchased the 20325253AK ECM for my 2004 RAM 5.9L Cummins, and I’m really impressed with the quality and service. The unit arrived quickly with free shipping, which was a nice bonus. They also provided professional VIN programming, so it was truly a plug-and-play experience without any hassles. Their team kept me informed throughout the process, which made the whole replacement smooth and stress-free.
Gavin King –
Fast shipping and the ECU came perfectly programmed for my 2004 RAM—it was truly plug-and-play, no hassle at all.
Jacob Ward –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2004 Cummins—plug-and-play setup made installation a breeze.
Excellent communication throughout the process and the programming service was spot on; my truck runs like new again.
Fast turnaround and the ECU was already VIN programmed, saving me a ton of hassle—highly recommend this seller.
Super reasonable shipping costs and the professional programming had my Ram firing on all cylinders in no time.
They answered all my questions promptly and the updated PCM worked flawlessly right out of the box.