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        Cummins Coolant Bypass Kit Auto Trans with Stainless Steel Braided Line 2006-2007 Dodge/Ram 2500/3500 5.9 Cummins Fleece Performance

        Increased Coolant Flow, Decreased Coolant Temperatures

        0.0
        Fleece Performance
        • Brand: Fleece Performance
        Vehicle Specific
        • $502.60

        Increased Coolant Flow, Decreased Coolant Temperatures. The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures.

        This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure.

        Our coolant bypass kit adds a secondary thermostat, that unlike other brands, works based on temperature instead of excessive pressure. This solves the problem before pressure becomes an issue by ensuring consistent temperatures across all six cylinders.

        Benefits:

        • Lowers coolant temperature at the rear cylinders
        • Ensures consistent temperatures across all cylinders
        • Prevents damaging coolant pressure build up
        • Complete kit comes with braided hose and AN O-ring fittings to ensure a leak-free installation.
        • Kits for MY 2003 and up include billet hose brackets.

        Why do I need a Fleece Coolant Bypass?
        One of the biggest issues on the 5.9/6.7L Cummins is the coolant flow problem to the rear cylinders. This can cause catastrophic failure or blow outs of the freeze plugs in an over-temperature / over-pressure condition. The Fleece Coolant Bypass is one of the most important additions you make to improve the reliability and longevity of the Cummins platform.
        Application Notes:

        • The 2003 - 2007 5.9L automatic transmission version will eliminate the factory transmission fluid heat exchanger. The heat exchanger is designed for use in cold climates to warm the transmission fluid with the engine coolant. It is not necessary for use in warm climates or high horsepower applications, nor does it detrimentally affect the trucks performance when removed.
        • For model years 2007 - 2018 6.7L trucks, including both automatic and manual equipped transmissions, factory installed transmission fluid heat exchangers are uncommon. For customers with a 6.7L that has a heat exchanger, a heater tube can be purchased at your local Chrysler Dealership [PN:68048997AA] to complete the installation.
          • SKU
            FPE-CLNTBYPS-CUMMINS-0607-SS-FQW
          • Weight
            8 lbs
          • Barcode
            670875715066
          • Dimensions (L x W x H)
            3 x 16 x 12 in
          • Manufacturer Part #
            FPE-CLNTBYPS-CUMMINS-0607-SS
        • Engine Year
          2006-2007
        • Vehicle Type
          Truck/SUV
        • Property 65 Warning
          CALIFORNIA WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov
        • Brand
          Fleece Performance
        • Country of Origin
          USA
        • Sold As
          Kit
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        Shipping Times

        Most customers will see their parts within 3-5 business days. We will primarily ship with Purolator ground & DHL Express to ensure the fastest shipping possible.

        Please Note: These are only estimates and shipping time may vary depending on your location, out of country and rural locations expect longer wait times.

        Where Do We Ship 

        We will ship our products within Canada and the United States.

        Please Note: There are limitations what can be shipped to the United States.

        Damaged Shipments

        We provide the option to purchase insurance as we are not responsible for any damage while with a courier, we don’t often see issues, but it does happen. If you purchased insurance we will put in a claim, if no insurance was purchased there will be no refunds or exchanges.

        We accept the following payment methods:


        Return Policy

        It happens sometimes we would like to return it. Here are our return rules:

        • Prior to any return you must contact us and get an approval for a  RMA number
        • Product must be unopened and have no damage. 
        • You must pay for the shipping back, please insure so if anything happens you can make a claim, we are not responsible for damage during shipping and is the sole responsibility of the customer.
        • Regular products are subject to a 5% Restocking fee.
        • Items over 50 lbs. or special orders will be subject to a 20% Restocking fee.
        • Electronics & Tuning is a final sale and cannot be returned. 
        • Fitment Type
          Vehicle Specific
        YearMakeModelNotes
        2006DodgeRam 3500
        2006DodgeRam 2500
        2007DodgeRam 3500
        2007DodgeRam 2500