Shop our line of Peterbilt 330/335/337 CAC Clamps, Boots & Hoses designed to keep your truck running at peak performance. Find everything from heavy-duty T-bolt clamps, silicone hump hoses, and flexible coolant hoses - all built to withstand the rigors of long-haul trucking. Installing quality clamps and boots prevent refrigerant leaks and damages, as well as ensure consistent cooling to your rig.