Fleece Performance Cummins Coolant Bypass Kit with SS Braided Line for 2006-2007 Dodge Ram (5.9L / 6.7L)

Fits 2006-2007 Dodge Ram 2500 and 3500 models with automatic transmissions (5.9L / 6.7L).

The rear cylinders on 5.9L and 6.7L Cummins engines frequently suffer from inadequate coolant flow, leading to localized hotspots and excessive pressure. This pressure can cause catastrophic failure, including blown external freeze plugs or the smaller diameter plugs located under the valve cover. The Fleece Performance Coolant Bypass Kit addresses this by adding a secondary thermostat that operates based on temperature rather than pressure, ensuring consistent cooling across all six cylinders and protecting your engine from over-temperature conditions.

This comprehensive kit features high-quality AN O-ring fittings and a durable stainless steel braided hose for a reliable, leak-free installation. For 2003-2007 5.9L automatic transmission applications, note that this kit is designed to eliminate the factory transmission fluid heat exchanger, which is typically used for warming fluid in cold climates.

• Lowers coolant temperatures at the rear of the engine block
• Prevents damaging pressure buildup that leads to freeze plug failure
• Secondary thermostat ensures flow based on temperature for consistent cooling
• Stainless steel braided coolant line with billet hose brackets
• Manufacturer Part Number: FPE-CLNTBYPS-CUMMINS-0607-SS