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!