The Flex Technologies Radiator Hose is the perfect choice for performance motors and vehicles, turbo-diesel vehicles and any other vehicle that needs to carry the coolant from the engine to the heater core. This hose is designed to meet SAE standard J20 for heater hoses and provides excellent resistance to high temperatures, ozone, UV rays and electrochemical degradation. It is made from high-quality silicone, making it durable and reliable. FleetPride is your First Click in Heavy Duty®.