Coolant Bypass Kit for 6.7L Cummins

Protect your 6.7L Cummins engine from overheating and pressure-related failures with our advanced Coolant Bypass Kit. Designed to address the critical issue of inadequate coolant flow to the rear cylinders, this kit is essential for maintaining optimal engine performance and longevity.

In the 6.7L Cummins, the rear cylinders often experience higher coolant temperatures due to insufficient flow, leading to excessive pressure buildup in the cooling system. This can result in blown freeze plugs or even failure of the smaller diameter plugs under the valve cover. Our coolant bypass kit solves this problem by adding a secondary thermostat that operates based on temperature, not excessive pressure, ensuring consistent cooling across all six cylinders.

By maintaining even temperatures throughout the engine, this kit effectively lowers coolant temperatures in the rear cylinders, preventing the damaging pressure buildup that can compromise your engine’s integrity. The complete kit includes high-quality braided hoses and AN O-ring fittings, ensuring a secure, leak-free installation.

Key Features:

• Temperature-Based Regulation: Secondary thermostat operates based on temperature, preventing pressure buildup before it becomes an issue.
• Consistent Cooling: Ensures uniform coolant flow and temperatures across all six cylinders, protecting your engine from hot spots.
• Prevents Damage: Lowers coolant temperatures at the rear cylinders, reducing the risk of blown freeze plugs and other cooling system failures.
• Complete Installation Kit: Includes braided hoses and AN O-ring fittings for a secure, leak-free installation.

Invest in our Coolant Bypass Kit to safeguard your 6.7L Cummins engine from overheating and ensure reliable performance under even the toughest conditions.