FLEECE FPE-CLNTBYPS-CUMMINS-MAN-SS CUMMINS COOLANT BYPASS KIT 03-07 MANUAL TRANSMISSION W/ STAINLESS STEEL BRAIDED LINE

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.

DETAILED FITMENT:

• 2003-2007 Dodge Ram 3500 Laramie
• 2003-2003 Dodge Ram 2500 Laramie
• 2003-2007 Dodge Ram 3500 SLT
• 2003-2004 Dodge Ram 2500 SLT
• 2003-2007 Dodge Ram 3500 ST
• 2003-2004 Dodge Ram 2500 ST
• 2005-2007 Dodge Ram 2500 Laramie
• 2006-2007 Dodge Ram 2500 SLT
• 2006-2007 Dodge Ram 2500 Sport
• 2006-2007 Dodge Ram 3500 Sport
• 2006-2007 Dodge Ram 2500 ST
• 2006-2007 Dodge Ram 2500 TRX4
• 2007-2007 Dodge Ram 3500 TRX4

  The Fleece FPE-CLNTBYPS-CUMMINS-MAN-SS Cummins Coolant Bypass Kit is engineered to enhance the performance and longevity of your 5.9L or 6.7L Cummins engine, particularly for models equipped with manual transmissions from 2003 to 2007. Designed specifically to tackle the common issue of restricted coolant flow to the rear cylinders, this kit alleviates excessive pressure build-up, which can lead to freeze plug failures and potential engine damage.
  
  A secondary thermostat, the key component of this innovative kit, operates based on temperature rather than pressure, ensuring optimal coolant flow even before any rising pressure becomes a concern. This proactive solution results in significantly lower coolant temperatures at the rear cylinders, promoting consistent thermal performance across all six cylinders. The complete kit includes durable stainless steel braided hoses and AN O-ring fittings, which guarantee a leak-free installation, enhancing the reliability of your cooling system.
  
  Moreover, for model years 2003 and up, it features premium billet hose brackets, making the installation process seamless and efficient. The Fleece Cummins Coolant Bypass Kit is essential for anyone looking to improve the durability of their truck while avoiding the catastrophic failures linked to coolant flow issues.
  
  This product is compatible with a variety of Dodge Ram models, including the 2500 and 3500 series, ensuring that owners of these vehicles can benefit from enhanced protection against overheating. With the Fleece Coolant Bypass Kit, enjoy the peace of mind knowing that your engine is safeguarded from potential coolant-related failures, allowing for greater reliability and performance, whether on the road or off the beaten path.