Shop Coolant Hoses & Pipes from XDP to find the replacements your 2017-2019 Chevy/GMC 6.6L L5P Duramax needs. Replace the failure prone components on your truck with the wide range of upgraded hoses, pipes, and connectors available. Get the replacement components your cooling system needs with the factory-style or heavy-duty hose options available. Maintain your cooling system with Coolant Hoses & Pipes available from brands like Dayco, Dorman, Mishimoto, and more.