Dayco Moulded Radiator and Bypass Hose are manufactured with knitted reinforcement and EPDM construction which provides high strength and resistance to oil, mud, salt, road debris, ozone, coolants and temperature variations that are required for OEM hose replacements. The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose. This hose meets the requirements for SAE J20R4, Class D-1. Also now designed to meet Type EC electro-chemical requirements as specified in SAE J1684 This hose will withstand temperatures from -40°C to +100°C (-40°F to 212°F)