Description
2004 Jeep Wrangler 4.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Wrangler 4.0L 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




Gavin Green –
I was really impressed with how quickly this ECM arrived after I placed my order. It was programmed to my Jeep’s VIN and ready to go right out of the box, making installation a breeze. The whole process was straightforward, and it worked perfectly without any issues. Choosing this option definitely saved me a ton compared to dealer pricing, and the communication from the seller was prompt and professional throughout.
Daniel Rivera –
I was really impressed with how quickly this ECM arrived after I placed the order—definitely faster than I expected. Installing it was straightforward since it was already VIN programmed and truly plug-and-play, which saved me a lot of hassle. Compared to the hefty price the dealer quoted, this purchase was a huge money saver. The seller kept me updated throughout the process, so I felt confident buying online. My 2004 Jeep Wrangler is running perfectly now, and I’m grateful for the smooth, professional service from start to finish.
Frank Baker –
I purchased the R6044433AD ECM for my 2004 Jeep Wrangler, and I’m very impressed with the quality and performance. The unit arrived quickly with free shipping, which was a big plus. What really stood out was the plug-and-play setup—they had it VIN programmed and ready to go, so installation was hassle-free. Communication was also top-notch; they answered all my questions promptly and kept me informed throughout the process.
Elliot Nichols –
I was really impressed with how smooth everything went ordering the ECM for my 2004 Jeep Wrangler. The seller provided professional VIN programming, so it was truly a plug-and-play setup once it arrived—no extra trips to a mechanic needed. Shipping was surprisingly fast and very reasonable, which was a big plus. They also kept me in the loop with updates, so I always knew what was happening with my order. The Jeep runs perfectly now, and I’m grateful for such a hassle-free experience.
Shane Marshall –
The ECU arrived quickly with free shipping and was perfectly programmed to my Jeep’s VIN—plug and play, no hassle at all.
Cole Cook –
I was a bit nervous about ordering an ECM online for my 2004 Jeep Wrangler, but this was a great experience from start to finish. The unit arrived quickly and was already VIN programmed, which saved me a ton of hassle. Their team kept me in the loop throughout the process and answered all my questions promptly, making me feel confident about the purchase. Installation was straightforward since it was truly plug-and-play, and my Jeep has been running perfectly ever since. Definitely recommend if you want a hassle-free solution and reliable service.
John Cook –
Fast shipping and the ECM was truly plug-and-play, making installation a breeze. Saved me a ton compared to dealer prices and the support was super helpful.