The Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass Kit with Stainless Steel Braided Line is a high-performance cooling upgrade designed specifically for 5.9/6.7L Cummins engines. This kit features a secondary thermostat that operates based on temperature, not pressure, effectively reducing coolant temperatures and ensuring consistent flow across all cylinders. Constructed with durable stainless steel braided hose and AN O-ring fittings, it provides a leak-free installation and enhances the reliability of the cooling system. By lowering rear cylinder temperatures and preventing excessive pressure buildup, this bypass kit helps avoid freeze plug blowouts and potential engine failures, making it a crucial addition for maintaining engine health and longevity.
Designed for 2006-2007 automatic transmission-equipped Cummins trucks, this kit is compatible with models from 2003 and newer. It is particularly beneficial for applications where coolant flow issues can cause overheating and damage, such as heavy-duty towing or high-performance use. The complete kit includes braided hoses, fittings, and billet hose brackets for MY 2003+ models, ensuring a secure fit. This upgrade is ideal for improving engine cooling efficiency and preventing catastrophic failures caused by overheating, especially in demanding driving conditions or in cold climates where the factory heat exchanger is eliminated in certain configurations.
