HPS 57-1449H-BLUE WJ Silicone Heater Hose Kit Coolant Vehicle Application: Jeep 2001-2004 Grand Cherokee WJ 4.7L V8 Replace stock OEM rubber Heater Hoses which can eventually weaken over time, leading to premature failure Withstand the harsh high temperature and high pressure operating conditions of the engine yet still maintaining peak efficiency during competition or daily driving. Max Temperature Rating: 350 deg. F (177 deg. C) Ideal replacement or performance upgrade for the OEM rubber hoses; Race proven design ensure the long lasting quality over the stock rubber hoses Includes 100 percent stainless steel industrial grade liner clamps which would not cut thru the silicone hoses