How the Coolant System Works in 67 Cummins Engine Check it Chevy 350 Cooling System Diagram.Reducing Emissions: The coolant system helps reduce emissions by regulating the engine temperature, which in turn reduces the number of pollutants that are released into the environment.Preventing Corrosion: The coolant contains additives that help prevent corrosion and rust from developing in the engine and other components of the cooling system.Lubricating Engine Components: The coolant helps lubricate the engine components, reducing friction and wear and tear.Regulating Engine Temperature: The coolant system helps regulate the engine temperature, preventing it from overheating or getting too cold.The coolant system of the 67 Cummins engine serves several important functions:

Heater Core: The heater core is responsible for heating the air that is circulated through the cabin of the vehicle.

Hoses: The hoses transport the coolant to and from the engine and other components of the cooling system.

Thermostat: The thermostat regulates the temperature of the coolant to ensure that it remains within a safe operating range.

Radiator: The radiator is designed to cool the coolant before it returns to the engine.

Water Pump: The water pump is responsible for circulating the coolant throughout the engine.

The coolant system of the 67 Cummins engine is made up of various components that work together to regulate the engine temperature and prevent overheating. 6.7L Cummins Heater Hose ReroutedĬomponents of the 67 Cummins Coolant System In this guide, we’ll take a detailed look at the coolant flow diagram of the 67 Cummins engine, including the various components of the coolant system, how it works, common issues, and maintenance tips. Related Article: 6.7 Cummins Coolant Leak Passenger Side It’s important to understand the coolant flow diagram of the engine in order to maintain optimal performance and prevent overheating. The 67 Cummins engine is a popular choice for heavy-duty trucks and other commercial vehicles. The thermostat regulates the temperature of the coolant, ensuring that it remains within a safe operating range. In the 67 Cummins engine, the coolant flows from the water pump, through the engine, and then into the radiator, where it is cooled before returning to the engine. Understanding this diagram is crucial in maintaining optimal engine performance, preventing overheating, and reducing emissions.

Meets Type EC electro-chemical requirements as specified in SAE J1684 which eliminates premature deterioration of the inner tube caused by the build up of static electric chargesA coolant flow diagram of a 67 Cummins engine illustrates the path that coolant takes through the engine’s cooling system.

Meets SAE J20R4, Class D-1 requirements for improved service hose.

The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.

Made with synthetic EPDM rubber compounds that provide resistance to deterioration from ozone, coolants, and temperature variations of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C).

In addition to meeting SAE J20R4, Class D-1 requirements, this hose is now designed to meet Type EC electro-chemical requirements as specified in SAE J1684 which prevents inner tube deterioration caused by the build up of static electric charges.

The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose. Dayco Molded Radiator and By-Pass Hose with knitted reinforcement and all synthetic EPDM rubber construction provides the high strength and resistance to oil, mud, salt, road debris, ozone, coolants, and temperature variations of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C) that are required for OEM hose replacements.

Freightliner coolant hose diagram