Radiator & Coolant Hoses
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Radiator and coolant hoses carry coolant from a vehicle's radiator to its engine to cool the engine and prevent overheating and vehicle malfunction. They also transport hot coolant from a vehicle's engine to its radiator, where the coolant is cooled for recirculation. Also known as antifreeze hoses, coolant lines, and coolant tubing, these hoses are made from materials that can withstand exposure to the chemicals and additives used in vehicle cooling systems.
EPDM SAE 20R1 Type EC Class D1 Radiator & Coolant Hoses
These EPDM (ethylene propylene diene monomer) type EC radiator and coolant hoses meet SAE (Society of Automotive Engineers) Standard 20R1 for Class D1 hoses, which provide low oil resistance and have a longer life expectancy then EPDM SAE 20R1 radiator and coolant hoses that do not meet the D1 Class rating. These hoses are typically used for routing coolant and radiator lines in heavy-duty trucks, buses, and off-road vehicles, and they are also approved for marine applications. EPDM hose provides good flexibility and strength, excellent resistance to ozone and high temperatures, and good resistance to chemicals. These hoses resist cold water leaks and electrochemical degradation. The hoses' cover is marked with 1" increments to help users cut the hose to the desired size in custom-fit applications.
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Nitrile SAE 20R2 Class B Radiator & Coolant Hoses
These nitrile SAE 20R2 Class B radiator and coolant hoses meet SAE (Society of Automotive Engineers) Standard 20R2. They are used for routing coolant in heavy-duty trucks where the hoses must make multiple bends or bends with small radiuses. The hoses have single-ply fabric reinforcement over a fully embedded helical steel wire, which strengthens the hoses and allows them to resist kinking and avoid collapsing under vacuum. The hoses have a neoprene cover that provides low (Class C) oil resistance, and they have a nitrile tube that provides good (Class B) oil resistance.
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Silicone SAE J20R1 Class A Radiator & Coolant Hoses
Silicone SAE J20R1 Class A radiator and coolant hose are rigid hoses used for routing mostly straight coolant and radiator lines in performance motors and vehicles, marine wet-exhaust systems, commercial truck and bus induction and cooling systems, agriculture and off-highway vehicles, and turbo-diesel vehicles. The hoses are convoluted inside and out and will not collapse under full vacuum. They are made from silicone, which provides excellent resistance to high temperatures, ozone, and UV rays. They also resist electrochemical degradation. These silicone hoses meet SAE (Society of Automotive Engineers) Standard J20R1 and have Class A high-temperature resistance.
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