The EGR cooler is located on top of the right valve cover and cools the exhaust gas before it enters the engine. This device, like…

The 6.7L CAC is an air-to-coolant heat exchanger. This allows for more cooling capacity in a smaller under hood space.  

Powertrain Secondary Cooling System Flow • The powertrain secondary cooling system cools the following components: –– Charge Air Cooler (CAC) –– fuel cooler –– EGR…

The primary coolant pump is located on the left front of the engine. The heater core transfers heat from the primary cooling system to the…

The coolant also passes from the cylinder head into the first half of the EGR cooler and then back into the cylinder head to cool…

The engine oil cooler is located on the left side of the engine oil pan. Coolant flows from the lower rear of the block through…

Primary Thermostat The primary thermostat has two thermostatic devices in one assembly. It is located in the coolant crossover at the front of the engine.…

• Coolant is sealed via rubber O-ring seals. • Coolant is directed through two passages in the front cover. One for the right bank of…

Primary••••Cooling System Flow The primary cooling system cools the following components: –– engine block –– cylinder heads –– engine oil cooler –– turbocharger –– EGR…

The 6.7L Power Stroke® diesel engine has two separate cooling systems: • The engine cooling system, called the primary or high temperature cooling system, •…