{"title":"Cooler Upgrades","description":null,"products":[{"product_id":"68rfe-thermostatic-bypass","title":"68RFE Thermostatic Bypass","description":"\u003cp data-start=\"25\" data-end=\"141\" class=\"PDq2pG_selectionAnchorContainer\"\u003eTransmission cooler thermal bypass options for 2010–2024 Cummins trucks equipped with a 68RFE or Aisin transmission.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"143\" data-end=\"442\"\u003eThe factory thermostatic bypass can stick in the closed position, restricting cooler flow and causing excessive transmission temperatures. These upgraded thermal bypasses eliminate the factory thermostat to provide consistent cooler flow and help reduce the risk of heat-related transmission damage.\u003c\/p\u003e\n\u003cp data-start=\"444\" data-end=\"602\"\u003eEach option is manufactured from billet aluminum for strength and durability and installs in place of the factory thermostatic bypass with minimal fluid loss.\u003c\/p\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"2010-2012","offer_id":42905888293112,"sku":"REV-5TC-BPS-1012","price":89.0,"currency_code":"USD","in_stock":true},{"title":"2013-2018","offer_id":42905888260344,"sku":"REV-5TC-BPS-1318","price":109.0,"currency_code":"USD","in_stock":true},{"title":"2019+","offer_id":46583462756600,"sku":"REV-5TC-BPS-19","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/IMG_0541.png?v=1785181105"},{"product_id":"48re-replacement-heat-exchanger","title":"48RE Replacement Heat Exchanger","description":"\u003cp\u003e\u003cstrong\u003e48RE Replacement Heat Exchanger:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTorque Converter oil cooler\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThis part meets all original Cummins and Chrysler OEM standards and has been extensively tested\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLeak tested from the factory\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThis is the part specified by the manufacturer with the aluminum mounting bracket, but without the steel bracket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eMPT recommends replacing this on high mileage vehicles to lessen the chance of coolant to transmission oil migration\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"Default Title","offer_id":42905916801272,"sku":"68253-AMERI","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/exchanger3-sized-1.png?v=1785182126"},{"product_id":"2003-2009-mishimoto-transmission-cooler","title":"2003-2009 Mishimoto Transmission Cooler","description":"\u003cp\u003e\u003cstrong\u003e2003-2009 Mishimoto Transmission Cooler\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits all 2003–2009 Dodge Ram 5.9L \u0026amp; 6.7L Cummins\u003c\/li\u003e\n\u003cli\u003e212% increase in core volume\u003c\/li\u003e\n\u003cli\u003e244% increase in fluid capacity\u003c\/li\u003e\n\u003cli\u003eIncludes fully serviceable thermostat for fast warm-up in cold climates and thermostat bypass for constant cooling in hot climates\u003c\/li\u003e\n\u003cli\u003eStacked-plate design for tough and reliable cooling\u003c\/li\u003e\n\u003cli\u003eEliminates corrosion-prone quick-disconnect fittings\u003c\/li\u003e\n\u003cli\u003eAvailable\u003cspan\u003e -8ORB to -8AN\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eallow the use of AN transmission fluid lines. (2 required)\u003c\/li\u003e\n\u003cli\u003ePatent #D912,701\u003c\/li\u003e\n\u003cli\u003eMishimoto Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"Default Title","offer_id":42906083328248,"sku":"MISHI-COOL-0309","price":604.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/ChatGPT_Image_Jul_20_2026_02_03_10_PM.png?v=1784570803"},{"product_id":"47rh-re-mishimoto-transmission-cooler","title":"47RH\/RE Mishimoto Transmission Cooler","description":"\u003cp data-start=\"17\" data-end=\"123\"\u003eUpgraded Mishimoto transmission cooler for 1994–2002 Dodge Ram trucks equipped with a 5.9L Cummins engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003eFits All 1994–2002 Dodge Ram 5.9L Cummins Applications\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003e116% Increase in Core Volume\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003e141% Increase in Fluid Capacity\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003e134% Increase in Fin Surface Area\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003eDurable Tube-and-Fin Construction\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003eEliminates Corrosion-Prone Quick-Disconnect Fittings\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003ePatent No. D905,115\u003c\/li\u003e\n\u003cli data-start=\"125\" data-end=\"426\"\u003eMishimoto Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"Default Title","offer_id":43108846993656,"sku":"MISH-COOL-9402","price":357.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/ccf338e8-ba73-466a-b8dd-54d07bd45d69_7ef50108-4095-4764-a123-d73b9690679c.png?v=1785185920"},{"product_id":"2010-2012-mishimoto-transmission-cooler","title":"68RFE 2010-2012 Mishimoto Transmission Cooler","description":"\u003cp\u003eUpgraded Mishimoto transmission cooler for 2010-2012 Dodge Ram trucks equipped with a 5.9L or 6.7L Cummins engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits All 2010–2012 Dodge Ram 5.9L and 6.7L Cummins Applications\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e60% Increase in Core Volume\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e86% Increase in External Fin Area for Improved Heat Dissipation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube-and-Fin Design for Heavy Towing and Rapid Load Changes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMishimoto Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"Default Title","offer_id":47931448361208,"sku":"MMTCR-MISHI2","price":571.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/Mishimoto_MMTC-RAM-10_1_600x600_baa28717-5169-4254-9584-1a3e5ad8d95a.png?v=1784567480"},{"product_id":"47re-oem-cooler-line-kit","title":"47RE OEM Cooler Line Kit","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe MPT 47RE Transmission Cooler Line Kit replaces the factory cooler lines with a durable -8 AN stainless steel braided hose system designed for clean routing, reliable sealing and improved serviceability.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eKit Includes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStainless steel braided cooler lines\u003c\/li\u003e\n\u003cli\u003eAluminum hose ends and fittings\u003c\/li\u003e\n\u003cli\u003eTransmission cooler line adapters\u003c\/li\u003e\n\u003cli\u003eDrain-back check valve\u003c\/li\u003e\n\u003cli\u003eLine mounting clamps and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe kit combines durable braided lines, lightweight aluminum fittings, drain-back protection and secure mounting components for a clean, reliable installation.\u003c\/p\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"Default Title","offer_id":50080137707768,"sku":"MPT-2CLRKIT-OEM","price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/47_OEM_line_kit_shopify.png?v=1786564069"},{"product_id":"48re-oem-cooler-line-kit","title":"48RE OEM Cooler Line Kit","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe MPT 48RE OEM-Style Transmission Cooler Line Kit replaces the factory cooler lines with a durable -8 AN stainless steel braided 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check valve\u003c\/li\u003e\n\u003cli\u003eProtective rub guards\u003c\/li\u003e\n\u003cli\u003eVibration-dampening mounting clamps\u003c\/li\u003e\n\u003cli\u003eLine retaining hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe kit combines durable braided lines, lightweight aluminum fittings, drain-back protection and secure mounting components for a clean, reliable installation.\u003c\/p\u003e","brand":"Muldoon's Performance Transmissions","offers":[{"title":"Default Title","offer_id":50080187318520,"sku":"MPT-3CLRKIT-MSH","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/2533\/0936\/files\/image_05d1bb81-1458-4ff8-91b8-2ca23a3926c1.png?v=1786563701"}],"url":"https:\/\/www.muldoontransmission.com\/collections\/cooler-upgrades.oembed","provider":"Muldoon's Performance Transmissions","version":"1.0","type":"link"}