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Restore your engine's performance with this genuine OEM Mopar engine control module (ECM). Pulled directly from a dismantled 2004 Jeep Wrangler by our family-owned team, it fits 2004 TJ and LJ Unlimited models with the 4.0L engine, automatic transmission, and Federal emissions. Skip the cheap aftermarket replacements and trust authentic, factory-grade components saved by fellow Jeep enthusiasts.
Genuine OEM Mopar Jeep Wrangler Engine Control Module (ECM)
Here at our family-owned shop, we absolutely love what we do-saving quality original Jeep parts so you can keep your rig on the road and out on the trails. Don't settle for cheap, aftermarket electronic components that fail or require frustrating reprogramming. This is a genuine OEM Mopar salvage engine control module (ECM), guaranteeing the exact factory fitment, reliable operation, and durable construction your Jeep Wrangler requires.
Product Condition & Features
We take pride in our work and carefully inspect every part we save. This ECM was pulled directly from a dismantled 2004 Jeep Wrangler and tested by our team to ensure all functions operate exactly as they should prior to dismantle. It is a genuine plug-and-play factory unit in good shape, built with high-quality materials that simply outlast remanufactured aftermarket replacements. Because it is a direct factory unit, it mounts right into your original setup without requiring custom modifications. Please review all photos closely for the exact cosmetic condition and any normal surface wear.
Fitment & Vehicle Compatibility
This engine control module is a direct plug-and-play replacement for 2004 Jeep Wrangler TJ and LJ Unlimited models equipped with the 4.0L 6-cylinder engine, automatic transmission, and Federal emissions.
OEM Interchange Part Numbers
The stamped OEM part number for this unit is 56044478AD. The applicable internal SKU number is 500700.
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| Year | Name | Description | |
|---|---|---|---|
| 2004-2004 | Jeep | Wrangler TJ | |
| 2004-2004 | Jeep | Wrangler LJ |
Restore your vehicle's performance with this genuine OEM Mopar engine control module (ECM) for a 4.0L 6-cylinder manual transmission. Pulled directly from a running and driving Jeep Wrangler, it is completely ready to install. Skip the cheap aftermarket rebuilds and trust authentic, factory-grade electronics for your Jeep.
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Genuine OEM Jeep NP231J Command-Trac transfer case with 23-spline long input shaft (1.55" exposed length) and an installed Heavy-Duty Slip Yoke Eliminator (SYE) Kit. OEM part number 52099211. Fits 1997-2002 Jeep Wrangler TJ 4.0L 6-cylinder and 2.5L automatic applications with suspension lifts requiring a fixed yoke setup. Fully inspected and tested prior to vehicle dismantle.
Genuine OEM Jeep NP231J Command-Trac transfer case with 23-spline input, OEM part number 52105886AC. Fits applicable 1997-2006 Jeep Wrangler TJ and 1998-2001 Jeep Cherokee XJ 4.0L applications. Fully inspected prior to vehicle dismantle and ready for installation. Direct OEM and industry interchange numbers apply.
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