The 6.0L Powerstroke is notorious for cooling system issues, and the degrading factory rubber hoses provide a potential failure point.Mishimoto has released a silicone coolant hose kit that offers increased pressure and temperature tolerance.The Mishimoto 6.0L Powerstroke coolant hose kit is constructed from a combination of high - grade silicone and four layers of heat - resistant embedded fibers, which create an extremely durable and rugged hose that will endure years of abuse.The Mishimoto silicone coolant hose kit includes our signature lifetime warranty and is available in black, blue, and red.