Fleece Performance Coolant Bypass for 2013-2018 Ram with 6.7L Cummins

The Fleece Performance Coolant Bypass for the 2013-2018 RAM with a 6.7L Cummins engine seamlessly integrates with your truck, providing an original equipment (OE) fit and finish.

The rear cylinders of the 6.7L Cummins often experience poor coolant flow, resulting in higher temperatures. This can lead to excessive pressure in the cooling system, particularly at the rear of the block, potentially causing freeze plugs to blow out either externally or the smaller plugs located under the valve cover, which can result in failure. Our coolant bypass kit includes a secondary thermostat that operates based on temperature rather than excessive pressure. This proactive approach ensures consistent temperatures across all six cylinders, preventing pressure-related issues before they arise.

**Benefits:**
- Lowers coolant temperature at the rear cylinders
- Ensures consistent temperatures across all cylinders
- Prevents damaging coolant pressure buildup
- The complete kit includes a braided hose and AN O-ring fittings for a leak-free installation.

**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 a protective high-temperature sleeve and AN fittings
- Mounting hardware