Keep your Mack CH/CHN/CHU running cool with our radiator, gasket, and hose parts. From premium radiator hoses and silicone coolant hoses to tough stainless steel clamps, we ve got what you need. Whether it s a 1.75" x 36" radiator hose or a 3" silicone coolant hose, these heavy-duty parts are built to last. Dependable, high-quality, and ready to handle the demands of the road find everything you need to keep your cooling system in top shape!