The Dayco Gold Label Silicone Heater Hose, designed for long life in heavy duty applications, is made with special silicone compounds and reinforced with one-ply of braided polyester yarn. This SAE 20R3, Class A hose is highly resistant to the deteriorating effects of oil, ozone, coolants, and coolant additives. In addition to being extremely flexible, this silicone hose has the highest temperature rating, namely –40˚F (-40˚C) to +350˚F (+175˚C), and longest service life of any Dayco heater hose product. When installed properly with special “silicone” clamps, this hose will give up to six times longer service life than ordinary coolant hose.
Note: not suitable for fuel or oil transfer.