Just in time for Summer! Our all-new Fleece Performance coolant bypass for the 2019+ RAM with 6.7L Cummins! Our patent pending design seamlessly integrates with your truck for an OE fit-and-finish.

FEATURES

Increased Coolant Flow, Decreased Coolant Temperatures

The rear cylinders on the 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.

Why do I need a Fleece Coolant Bypass?

One of the biggest issues on the 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.

Kit Includes:

Rear coolant bypass thermostat housing
Front coolant bypass thermostat housing
New EGR cross-over tube gaskets
Black braided nylon coolant bypass hose with AN fittings
Mounting hardware

Without Coolant Bypass

WARRANTY

1 Year Limited Warranty

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