Peterbilt 386 Radiator Tubes, Gaskets & Hoses Keep your Peterbilt 386 running cool with durable radiator hoses, gaskets, and clamps. Need a replacement? We?ve got silicone coolant hoses in all sizes and reliable stainless steel clamps, including BESTfit and constant torque options for added durability. Don?t let a leaky radiator slow you down?shop now and hit the road with confidence!