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Fleece FPE-CLNTBYPS-CUMMINS-0607 Coolant Bypass Kit

2006-2007 Dodge 5.9L Cummins (Automatic Transmission)
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Description

If you're pushing your 2006-2007 Dodge 5.9L Cummins with an automatic transmission past 350 horsepower, you need the Fleece FPE-CLNTBYPS-CUMMINS-0607 Coolant Bypass Kit. When horsepower is increased, the demand for extra cooling is increased, stressing the factory cooling system. The rear cylinders begin to suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause critical pressure levels to build in the system, especially the rear of the block, and possibly blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure.

Fleece has designed their coolant bypass kit with a secondary thermostat which operates based off of temperature. This allows the rear cylinders to receive adequate cooling, solving the issue of excessive pressure buildup before it ever becomes a problem. Included in this complete kit are high quality O-ring fittings, AN hose connections with your choice of braided black nylon or braided stainless steel hose to ensure a leak-free installation.

Features: 
  • Prevents Critical Cooling System Pressure
  • Head Removal Not Required For Installation
  • Includes Secondary Temperature Operated Thermostat
  • Ensures Consistent Coolant Temperature Across All Cylinders
  • Available with Braided Black Nylon or Braided Stainless Steel Hose
  • 1 Year Limited Warranty
Note: For trucks with automatic transmissions only.

Product Options

PART NUMBER HOSE TYPE
FPE-CLNTBYPS-CUMMINS-0607 Braided Black Nylon
FPE-CLNTBYPS-CUMMINS-0607-SS Braided Stainless Steel

Specifications

  • Manufacturer Name Fleece Performance
  • Shipping Weight 15.00 lb.
  • Shipping Length 4 in.
  • Shipping Width 9 in.
  • Shipping Height 12 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 1 Year Limited
  • Prop 65 WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

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Questions and Answers

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Most Popular Questions

Where does this system install?
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Answer

2003-2007 Manual Transmission & 2007.5-2013 Auto/Manual Transmission Install - Click Here

2003-2007 Automatic Transmissions Install - Click Here

What’s the difference between the automatic and manual kit?
View Staff Answer 
Answer
The ’03-’07 5.9L automatic transmission version will eliminate the factory transmission fluid heat exchanger. The heat exchanger is not a fluid cooler; it was 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. All ‘07-‘16 6.7 trucks, both automatic and manual equipped transmissions, do not have a transmission fluid heat exchanger.
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