Mishimoto 17-19 Chevrolet Duramax 6.6L L5P Blue Silicone Radiator Hose KitWhether you're hauling the family fifth wheel or driving out to the job site, you rely on your Duramax to get where you need to go. The factory Duramax L5P radiator hoses are constructed from a mixture of molded rubber and plastic. As your truck endures thousands of heat cycles, hours of idle time, and countless high stress miles, those materials will begin to degrade, harden, and potentially develop leaks. That's why Mishimoto has designed this