Fleece Performance FPE-CLNTBYPS-CUMMINS-0712 Coolant Bypass Kit 6.7L Cummins

The Fleece Performance Coolant Bypass Kit addresses a critical design flaw in 2007.5-2012 RAM 6.7L Cummins engines where inadequate coolant flow to the rear cylinders causes dangerous temperature spikes and pressure buildup that can lead to blown freeze plugs and catastrophic engine failure.

How It Works:

This complete bypass system adds a secondary thermostat that operates based on temperature rather than pressure, ensuring consistent coolant flow across all six cylinders before dangerous pressure conditions develop. The kit seamlessly integrates with your factory cooling system for an OEM-quality fit and finish.

Key Benefits:

• Significantly lowers coolant temperatures at the rear cylinders
• Maintains consistent temperatures across all six cylinders
• Prevents damaging pressure buildup that causes freeze plug failure
• Improves overall engine reliability and longevity
• Temperature-activated operation prevents issues before pressure becomes critical

Complete Kit Includes:

• Rear coolant bypass thermostat housing
• Front coolant bypass thermostat housing
• Black braided nylon coolant bypass hose with high-temperature protective sleeve
• AN O-ring fittings for leak-free installation
• New EGR crossover tube gaskets
• All necessary mounting hardware

This coolant bypass kit is an essential upgrade for any 2007.5-2012 RAM 6.7L Cummins owner looking to protect their investment and prevent one of the most common failure points on this platform.