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







Blake Brown –
The free shipping was a great bonus, and the ECU arrived perfectly programmed and ready to install—had my Jeep running like new in no time.
Harrison Miles –
I’m really pleased with the 56044419AD ECM for my 2004 Jeep Wrangler. The unit arrived quickly and was truly plug-and-play, which made installation a breeze. Compared to dealer prices, this saved me a significant amount of money. The seller’s communication was clear and professional, making the whole process feel smooth and hassle-free.
Kyle Reed –
The ECM arrived quickly and was truly plug-and-play, saving me a bundle compared to dealer prices. Installation was straightforward and the customer support was top-notch.
Austin Jenkins –
I was pretty nervous about replacing the ECM on my 2004 Jeep Wrangler, but this unit made the whole process much easier. The fact that it came VIN programmed saved me a lot of hassle, and the plug-and-play setup meant I didn’t need any extra tuning. Shipping was surprisingly fast and affordable too, which was a relief. I also appreciated the quick responses when I had questions about installation. Overall, it’s been running smoothly, and I’m really happy with the purchase.
Travis Cook –
I purchased the 56044419AD ECM for my 2004 Jeep Wrangler and was impressed by how easy the plug-and-play setup was. The unit came VIN programmed, which saved me a ton of hassle and time. Shipping was very reasonable and the package arrived well within the expected timeframe. Overall, a smooth and professional experience from start to finish.