{"product_id":"fleece-performance-03-05-auto-trans-cummins-coolant-bypass-kit-w-stainless-steel-braided-line","title":"Fleece Performance 03-05 Auto Trans Cummins Coolant Bypass Kit w\/ Stainless Steel Braided Line","description":"\u003cp\u003eThe Fleece Performance 03-05 Auto Trans Cummins Coolant Bypass Kit with Stainless Steel Braided Line is a critical upgrade designed to improve coolant flow and reduce operating temperatures in 5.9\/6.7L Cummins engines. This complete kit features a secondary thermostat that operates based on temperature rather than pressure, ensuring consistent coolant temperatures across all cylinders and preventing excessive pressure buildup. Constructed with durable stainless steel braided lines and AN O-ring fittings, it guarantees a leak-free installation. The inclusion of billet hose brackets for model years 2003 and newer enhances durability and installation ease. This bypass kit effectively lowers rear cylinder coolant temperatures, mitigates the risk of freeze plug blowouts, and enhances engine reliability and longevity, especially under demanding conditions.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for 2003 to 2005 automatic transmission-equipped Cummins engines, this kit is a direct replacement that addresses common coolant flow issues in the platform. It is suitable for use in street, towing, and daily driving applications where engine cooling efficiency is critical. The kit eliminates the factory transmission fluid heat exchanger, which is intended for cold climates, making it ideal for warmer environments or performance setups. Installation involves replacing existing components with the included braided hoses and fittings, providing a robust, leak-proof upgrade. This coolant bypass kit is essential for maintaining optimal engine temperatures and preventing catastrophic failures caused by overheating or pressure-related damage in the rear cylinders.\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":52551361593631,"sku":"FPE-CLNTBYPS-CUMMINS-0305-SS","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/s-l1600_7d0d962c-17a0-487a-9bee-c1ab4228acf9.webp?v=1779158928","url":"https:\/\/shop.wheelflip.com\/products\/fleece-performance-03-05-auto-trans-cummins-coolant-bypass-kit-w-stainless-steel-braided-line","provider":"WheelFlip","version":"1.0","type":"link"}