fleece-FPE-CLNTBYPS-CUMMINS-VP-SS-1
fleece

Fleece Performance Coolant Bypass Kit (Coolant Hose Braiding - Stainless Steel) - 98.5-02 Dodge Cummins VP

Thoroughbred Sku #: FPE-CLNTBYPS-CUMMINS-VP-SS

Your Selected Vehicle Does Not Fit, Please Select a Vehicle

Select a Vehicle

Selected Vehicle

Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit

Item Options:

Prop 65:
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov


Quick Ship

$359.00

free-shipping-no-handling

Applications:

View All applications

VERIFY VEHICLE FIT

Product Details

Product Name: Fleece Performance Coolant Bypass Kit (Coolant Hose Braiding - Stainless Steel) - 1998.5-2002 Dodge Cummins VP - CLNTBYPS-CUMMINS-VP-SS
Manufacturer: Fleece
Manufacturer Part #: FPE-CLNTBYPS-CUMMINS-VP-SS
Thoroughbred Diesel Part #: FPE-CLNTBYPS-CUMMINS-VP-SS
Fitment Notes: 1998.5-2002 Dodge Cummins VP

Increased Coolant Flow, Decreased Coolant Temperatures

The rear cylinders on the 5.9 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.

Fleece Performance Coolant Bypass Kit Features:

  • 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+ include billet hose brackets.
  • For more on Fleece's Performance Coolant Bypass Kit call us at 1-859-737-4966.

 

Why do I need a Fleece Coolant Bypass?

One of the biggest issues on the 5.9 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. 


Reviews

  • Does this bypass work for both auto or manual or one or the other?

    Jacob P Ankley | 8/21/2021

    Yes, both applications.

  • Does this kit include the heater core tube as shown in video?

    JStorer | 1/13/2022

    No. Fleece does not include that tube any longer.