Rubber is out, silicone is in! Upgrade your old GM C/K Truck radiator hose with the Mishimoto 1963–1966 GM C/K Truck Silicone Upper Radiator Hose to provide your C/K Truck with an advancement in both style and reliability. With this hose, two worm-gear clamps are included for ease of installation. Unlike the degradation-prone rubber hoses your GM C/K Truck currently has, every Mishimoto silicone hose is constructed from five layers of silicone with heat-resistant embedded fibres to provide unmatched durability, heat tolerance, and pressure tolerance. Whether you take your classic to a show or use it to cruise on the weekends, trust Mishimoto with all your C/K Truck parts. This silicone hose is available in black and, like all of our Classic Line parts, includes the Mishimoto Lifetime Warranty.