FLEECE FPE-CLNTBYPS-CUMMINS-0305-SS CUMMINS COOLANT BYPASS KIT 003-05 AUTO TRANS WITH 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:

• 2003-2005 Dodge Ram 3500 Laramie
• 2003-2003 Dodge Ram 2500 Laramie
• 2003-2005 Dodge Ram 3500 SLT
• 2003-2004 Dodge Ram 2500 SLT
• 2003-2005 Dodge Ram 3500 ST
• 2003-2004 Dodge Ram 2500 ST
• 2005-2005 Dodge Ram 2500 Laramie

  The Fleece FPE-CLNTBYPS-CUMMINS-0305-SS Cummins Coolant Bypass Kit is a vital accessory designed to enhance the performance and reliability of 2003-2005 Dodge Ram 5.9L and 6.7L models. This innovative kit addresses a critical issue faced by Cummins engines: inadequate coolant flow to the rear cylinders. As these cylinders often run at higher temperatures, they are prone to excessive pressure, which can lead to serious failures like blowouts of freeze plugs.
  
  Featuring an advanced secondary thermostat that operates based on temperature, rather than excess pressure, this bypass kit prevents overheating before it becomes a problem. By lowering coolant temperatures at the rear cylinders and ensuring uniform temperature distribution across all cylinders, it enhances engine longevity and performance.
  
  Installation is streamlined with a complete kit that includes a high-quality braided stainless steel hose and AN O-ring fittings, guaranteeing a leak-free connection. For model years 2003 and up, the kit also comes with robust billet hose brackets for a secure fit, making the installation process even easier.
  
  In addition to preventing potential cooling system failures, this coolant bypass kit makes a significant impact on your vehicle’s overall efficiency. Eliminating the factory transmission fluid heat exchanger, it provides a cleaner and more effective cooling solution that is especially advantageous in warmer climates or high horsepower scenarios.
  
  Suitable for various models, including the Dodge Ram 3500 Laramie and 2500 SLT, the Fleece Coolant Bypass Kit stands out due to its reliability-enhancing features and user-friendly design. Equip your Cummins with this essential upgrade to ensure optimized coolant flow and maintain cooler, more stable engine temperatures. Make the smart choice for your truck's health and performance.