{"product_id":"407336489350","title":"2003 Jeep Liberty 45RFE Transmission Control Module TCM TCU OEM 56044573AA","description":"\u003c!-- Version: SixBit eCommerce Suite 5.0.38.0 (Home) --\u003e \u003cstyle\u003eimg{max-width:100%}\u003c\/style\u003e\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"max-width:760px;margin:0 auto;font-family:Arial,sans-serif;font-size:14px;\"\u003e \u003ctr\u003e \u003ctd style=\"background:#1C2D40;padding:16px 22px;border-radius:6px 6px 0 0;\"\u003e \u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\"\u003e \u003ctr\u003e \u003ctd\u003e \u003cdiv style=\"color:#ffffff;font-size:19px;font-weight:bold;letter-spacing:0.5px;\"\u003eKoskowski Automotive, LLC\u003c\/div\u003e \u003cdiv style=\"color:#7BA8C4;font-size:12px;margin-top:4px;\"\u003eFamily-Owned Since 1972  •  Fulton, NY  •  Light Trucks \u0026amp; SUV Specialists\u003c\/div\u003e \u003c\/td\u003e \u003ctd align=\"right\" style=\"vertical-align:middle;\"\u003e \u003cspan style=\"display:inline-block;border:1px solid #4A6B8C;border-radius:4px;padding:5px 10px;color:#cde;font-size:12px;margin-left:6px;\"\u003eBBB A+ Rated\u003c\/span\u003e \u003cspan style=\"display:inline-block;border:1px solid #4A6B8C;border-radius:4px;padding:5px 10px;color:#cde;font-size:12px;margin-left:6px;\"\u003e50+ Years Experience\u003c\/span\u003e \u003cspan style=\"display:inline-block;border:1px solid #4A6B8C;border-radius:4px;padding:5px 10px;color:#cde;font-size:12px;margin-left:6px;\"\u003eTruck \u0026amp; SUV Specialists\u003c\/span\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"background:#2C3E50;padding:10px 22px;\"\u003e \u003cspan style=\"background:#e67e22;border-radius:4px;padding:3px 10px;color:#fff;font-weight:bold;font-size:12px;text-transform:uppercase;margin-right:14px;\"\u003eUsed – OEM Pull\u003c\/span\u003e \u003cspan style=\"color:#fff;font-size:13px;\"\u003eInspected \u0026amp; Tested Before Listing  •  Fast Shipping  •  30-Day Returns\u003c\/span\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #dce3ea;border-top:none;padding:20px 22px;line-height:1.8;color:#333;font-size:14px;\"\u003e \u003c!-- Begin Description --\u003e\u003cdiv vocab=\"https:\/\/schema.org\/\" typeof=\"Product\"\u003e\u003cspan property=\"description\"\u003e\u003cp\u003eHere we are offering a Chassis Brain Box that was removed from the following donor vehicle:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eStock Number: 00014020\u003c\/li\u003e \u003cli\u003eModel: \u003cspan class=\"modelname\"\u003eLIBERTY\u003c\/span\u003e \u003cspan class=\"invyear\"\u003e2003\u003c\/span\u003e\n\u003c\/li\u003e \u003cli\u003eVIN: 1J4GL48K73W534918\u003c\/li\u003e \u003cli\u003eOdometer: 188715 Miles\u003c\/li\u003e \u003cli\u003eTag: 0000044416\u003c\/li\u003e \u003cli\u003ePart Comments: \u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eCondition Description:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ePulled from a running vehicle and working when removed, unless noted otherwise in this listing. This is a used transmission control module (TCM) removed from a 2003 Jeep Liberty 3.7L with 45RFE automatic (188,715 miles). The part shown in the images is the exact item we will ship you. Label reads 56044573AA. Light surface rust on one edge of the heat sink and cover (photos 9-12); connector pins look straight. Please review all images and ask questions before buying.\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eWhat this is:\u003c\/strong\u003e Transmission control module for the 45RFE automatic, from a 2003 Jeep Liberty, mounted at the RH rear engine compartment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart numbers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e56044573AA\u003c\/strong\u003e - Mopar module part number on the label\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e591-3489\u003c\/strong\u003e - Hollander interchange (2003 Liberty 45RFE TCM; 42RLE uses 591-3604)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to match your original:\u003c\/strong\u003e Match 56044573AA on the end label of your original; 45RFE only, not 42RLE. Single white connector with center bolt.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLabel legible (photo 14)\u003c\/li\u003e\n\u003cli\u003eLight rust along heat sink edge (photos 9-12)\u003c\/li\u003e\n\u003cli\u003eConnector pins straight (photo 13)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eInterchange:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAlso fits the following models:\u003c\/p\u003e \u003cp\u003e\u003cspan class=\"fit\"\u003e\u003cspan class=\"modelname\"\u003eJEEP LIBERTY\u003c\/span\u003e \u003cspan class=\"modelyears\"\u003e\u003cspan class=\"startyear\"\u003e2003\u003c\/span\u003e - \u003cspan class=\"endyear\"\u003e2003\u003c\/span\u003e\u003c\/span\u003e \u003cspan class=\"icdescription\"\u003eTransmission Control Module TCM; Transmission; (RH rear engine compartment), 45RFE transmission\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eHollander interchange 591-3489 fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eJeep Liberty 2003: Transmission; (RH rear engine compartment), 45RFE transmission\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePulled from a running vehicle and working when removed, unless noted otherwise in this listing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMatch the part number on your original module: 56044573AA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInterchange Notes:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ePlease 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!\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c!-- End Description --\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #dce3ea;border-top:none;padding:18px 22px;\"\u003e \u003cdiv style=\"font-size:15px;font-weight:bold;color:#1C2D40;border-bottom:2px solid #4A6B8C;padding-bottom:7px;margin-bottom:14px;text-transform:uppercase;letter-spacing:0.4px;\"\u003eWhy Buy From Koskowski Automotive\u003c\/div\u003e \u003ctable width=\"100%\" cellpadding=\"8\" cellspacing=\"8\"\u003e \u003ctr\u003e \u003ctd width=\"33%\" style=\"background:#f4f7fa;border-top:3px solid #4A6B8C;border-radius:6px;text-align:center;padding:14px 10px;vertical-align:top;\"\u003e \u003cdiv style=\"font-weight:bold;font-size:13px;color:#1C2D40;margin-bottom:4px;\"\u003eInspected Before Listing\u003c\/div\u003e \u003cdiv style=\"font-size:12px;color:#555;line-height:1.5;\"\u003eEvery used part is cleaned and inspected. What you see in the photos is what you get.\u003c\/div\u003e \u003c\/td\u003e \u003ctd width=\"33%\" style=\"background:#f4f7fa;border-top:3px solid #4A6B8C;border-radius:6px;text-align:center;padding:14px 10px;vertical-align:top;\"\u003e \u003cdiv style=\"font-weight:bold;font-size:13px;color:#1C2D40;margin-bottom:4px;\"\u003eFast Shipping\u003c\/div\u003e \u003cdiv style=\"font-size:12px;color:#555;line-height:1.5;\"\u003eShips within 1–2 business days. Carefully packaged to prevent damage in transit.\u003c\/div\u003e \u003c\/td\u003e \u003ctd width=\"33%\" style=\"background:#f4f7fa;border-top:3px solid #4A6B8C;border-radius:6px;text-align:center;padding:14px 10px;vertical-align:top;\"\u003e \u003cdiv style=\"font-weight:bold;font-size:13px;color:#1C2D40;margin-bottom:4px;\"\u003e30-Day Returns\u003c\/div\u003e \u003cdiv style=\"font-size:12px;color:#555;line-height:1.5;\"\u003eReturns accepted within 30 days. Message us first — we’ll make it right.\u003c\/div\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"background:#f4f7fa;border-top:3px solid #4A6B8C;border-radius:6px;text-align:center;padding:14px 10px;vertical-align:top;\"\u003e \u003cdiv style=\"font-weight:bold;font-size:13px;color:#1C2D40;margin-bottom:4px;\"\u003eFamily-Owned Since 1972\u003c\/div\u003e \u003cdiv style=\"font-size:12px;color:#555;line-height:1.5;\"\u003e50+ years serving vehicle owners, DIY mechanics, and repair shops.\u003c\/div\u003e \u003c\/td\u003e \u003ctd style=\"background:#f4f7fa;border-top:3px solid #4A6B8C;border-radius:6px;text-align:center;padding:14px 10px;vertical-align:top;\"\u003e \u003cdiv style=\"font-weight:bold;font-size:13px;color:#1C2D40;margin-bottom:4px;\"\u003eReal Support\u003c\/div\u003e \u003cdiv style=\"font-size:12px;color:#555;line-height:1.5;\"\u003eHave a question? Message us before or after buying — we respond fast.\u003c\/div\u003e \u003c\/td\u003e \u003ctd style=\"background:#f4f7fa;border-top:3px solid #4A6B8C;border-radius:6px;text-align:center;padding:14px 10px;vertical-align:top;\"\u003e \u003cdiv style=\"font-weight:bold;font-size:13px;color:#1C2D40;margin-bottom:4px;\"\u003eBBB A+ Rated\u003c\/div\u003e \u003cdiv style=\"font-size:12px;color:#555;line-height:1.5;\"\u003eTrusted seller with thousands of transactions and a proven track record.\u003c\/div\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #dce3ea;border-top:none;padding:18px 22px;\"\u003e \u003cdiv style=\"font-size:15px;font-weight:bold;color:#1C2D40;border-bottom:2px solid #4A6B8C;padding-bottom:7px;margin-bottom:14px;text-transform:uppercase;letter-spacing:0.4px;\"\u003eShipping \u0026amp; Returns\u003c\/div\u003e \u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"8\"\u003e \u003ctr\u003e \u003ctd width=\"25%\" style=\"background:#f4f7fa;border-left:3px solid #4A6B8C;padding:8px 12px;border-radius:0 4px 4px 0;\"\u003e \u003cdiv style=\"font-size:11px;color:#666;text-transform:uppercase;margin-bottom:2px;\"\u003eHandling Time\u003c\/div\u003e \u003cdiv style=\"font-weight:bold;color:#1C2D40;font-size:14px;\"\u003e1–2 Business Days\u003c\/div\u003e \u003c\/td\u003e \u003ctd width=\"25%\" style=\"background:#f4f7fa;border-left:3px solid #4A6B8C;padding:8px 12px;border-radius:0 4px 4px 0;\"\u003e \u003cdiv style=\"font-size:11px;color:#666;text-transform:uppercase;margin-bottom:2px;\"\u003eReturn Window\u003c\/div\u003e \u003cdiv style=\"font-weight:bold;color:#1C2D40;font-size:14px;\"\u003e30 Days\u003c\/div\u003e \u003c\/td\u003e \u003ctd width=\"25%\" style=\"background:#f4f7fa;border-left:3px solid #4A6B8C;padding:8px 12px;border-radius:0 4px 4px 0;\"\u003e \u003cdiv style=\"font-size:11px;color:#666;text-transform:uppercase;margin-bottom:2px;\"\u003eReturn Shipping\u003c\/div\u003e \u003cdiv style=\"font-weight:bold;color:#1C2D40;font-size:14px;\"\u003eBuyer Pays\u003c\/div\u003e \u003c\/td\u003e \u003ctd width=\"25%\" style=\"background:#f4f7fa;border-left:3px solid #4A6B8C;padding:8px 12px;border-radius:0 4px 4px 0;\"\u003e \u003cdiv style=\"font-size:11px;color:#666;text-transform:uppercase;margin-bottom:2px;\"\u003eRestocking Fee\u003c\/div\u003e \u003cdiv style=\"font-weight:bold;color:#1C2D40;font-size:14px;\"\u003eNone\u003c\/div\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e \u003cdiv style=\"background:#e8f4fd;border-left:4px solid #4A6B8C;padding:12px 16px;border-radius:0 4px 4px 0;font-size:13px;line-height:1.6;margin-top:12px;\"\u003e \u003cstrong\u003eCompatibility returns:\u003c\/strong\u003e 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. \u003c\/div\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"background:#1C2D40;padding:14px 22px;border-radius:0 0 6px 6px;text-align:center;font-size:12px;color:#7BA8C4;line-height:1.8;\"\u003e \u003cstrong style=\"color:#ffffff;\"\u003eKoskowski Automotive, LLC\u003c\/strong\u003e  •  Fulton, NY  •  Family-Owned Since 1972\u003cbr\u003e Light Truck \u0026amp; SUV Specialists  •  BBB A+ Rated  •  4-Acre Salvage Yard  •  200–500 Vehicles in Stock\u003cbr\u003e Thank you for shopping with us. We appreciate your business. \u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e \u003cdiv style=\"font-size:12px;clear:both\" align=\"center\"\u003e\n\u003cimg src=\"https:\/\/www.sixbitsoftware.com\/images\/tagline.jpg\" align=\"absbottom\" border=\"0\" alt=\"Powered by SixBit\" longdesc=\"https:\/\/www.sixbitsoftware.com\/images\/tagline.jpg\"\u003e\u003cbr\u003ePowered by SixBit's eCommerce Solution\u003c\/div\u003e","brand":"Mopar","offers":[{"title":"Default Title","offer_id":67904116359242,"sku":"40139","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2074\/9130\/files\/3_213ef6f4-ad2a-4c9d-83ec-85881dfb2660.jpg?v=1793823594","url":"https:\/\/www.koskowskiautoparts.com\/products\/407336489350","provider":"Koskowski Autoparts","version":"1.0","type":"link"}