For Corolla AE86 3-Ply Silicone Radiator Coolant Hose (Red) - 5th Gen E80 4A-GEU 3-Ply (4mm) Nylon for Strong Reinforcement Increases Engine Performance and Efficiency and Helps to Keep Engine Bay Temperatures Cooler Withstands Operating Temperatures up to 330F Degrees Fahrenheit Direct Bolt-On Replacement of Factory Rubber Hoses Work With Factory or Aftermarket Radiators