2003 Jeep Liberty 3.7L Engine Computer ECM PCM 45RFE Auto OEM 56044623AE

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SKU: 40137
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• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price $80.99
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • Condition Used – See Description
  • SKU 40137
  • Barcode 257832258794
Koskowski Automotive, LLC
Family-Owned Since 1972  •  Fulton, NY  •  Light Trucks & SUV Specialists
BBB A+ Rated 50+ Years Experience Truck & SUV Specialists
Used – OEM Pull Inspected & Tested Before Listing  •  Fast Shipping  •  30-Day Returns

Here we are offering an Engine Brain Box that was removed from the following donor vehicle:

  • Stock Number: 00014020
  • Model: LIBERTY 2003
  • VIN: 1J4GL48K73W534918
  • Odometer: 188715 Miles
  • Tag: 0000044415
  • Part Comments:

Condition Description:

Pulled from a running vehicle and working when removed, unless noted otherwise in this listing. This is a used engine control module (ECM/PCM) removed from a 2003 Jeep Liberty 3.7L automatic (188,715 miles). The part shown in the images is the exact item we will ship you. Label reads 56044623AE (Authorized Software Update label). Connector pins look straight and clean. This module is VIN/SKIM programmed to the donor; it will need to be programmed to your vehicle with a dealer or capable scan tool. Please review all images and ask questions before buying.


What this is: Engine/powertrain control module from a 2003 Jeep Liberty with the 3.7L V6 and 45RFE automatic.

Part numbers:

  • 56044623AE - Mopar module part number on the software label
  • 590-6929 - Hollander interchange (2003 Liberty 3.7L AT 45RFE ECM)

How to match your original: Match 56044623AE on the label of your original module, LH engine compartment; same 3-plug gray header. Program to your VIN/SKIM after install.

Condition:

  • Label legible (photo 5)
  • Connector pins straight (photo 6)
  • Yellow yard paint mark on cover (photo 1)
  • Back case shows surface oxidation (photos 7-10)

Interchange:

Also fits the following models:

JEEP LIBERTY 2003 - 2003 Engine Control Module ECM PCM; Electronic Control Module; (LH engine compartment), 3.7L, AT, 45RFE


Hollander interchange 590-6929 fits:

  • Jeep Liberty 2003: Electronic Control Module; (LH engine compartment), 3.7L, AT, 45RFE

Pulled from a running vehicle and working when removed, unless noted otherwise in this listing.

Match the part number on your original module: 56044623AE

Interchange Notes:

Please verify the interchange of this part using the pictures and part numbers (when possible) that have been provided before purchasing this item. You may also want to contact your local dealer to verify the fitment of this part. We are sorry, we have no written interchange for this part and have offered the above interchange as a suggestion and we urge you to verify before buying. If you have any questions, need more pictures, or have any doubt this is like your part, please don't buy it. We want to sell you the right part, so feel free to contact us! This may fit other years and models as well!

Why Buy From Koskowski Automotive
Inspected Before Listing
Every used part is cleaned and inspected. What you see in the photos is what you get.
Fast Shipping
Ships within 1–2 business days. Carefully packaged to prevent damage in transit.
30-Day Returns
Returns accepted within 30 days. Message us first — we’ll make it right.
Family-Owned Since 1972
50+ years serving vehicle owners, DIY mechanics, and repair shops.
Real Support
Have a question? Message us before or after buying — we respond fast.
BBB A+ Rated
Trusted seller with thousands of transactions and a proven track record.
Shipping & Returns
Handling Time
1–2 Business Days
Return Window
30 Days
Return Shipping
Buyer Pays
Restocking Fee
None
Compatibility returns: If a part does not fit your vehicle, please message us before opening a return. We may be able to help identify the correct part or resolve the issue quickly.
Koskowski Automotive, LLC  •  Fulton, NY  •  Family-Owned Since 1972
Light Truck & SUV Specialists  •  BBB A+ Rated  •  4-Acre Salvage Yard  •  200–500 Vehicles in Stock
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