Upgrade the stock coolant hoses on your 2001-2004 Chevy/GMC 6.6L LB7 Duramax with Coolant Hoses & Pipes from XDP. XDP offers OE-style replacements and heavy-duty hose options to suit your vehicle's needs. Swap out failure prone parts on your truck and avoid overheating with upgraded hoses, pipes, and connectors. Get the Coolant Hoses & Pipes your vehicle needs from leading manufacturers like Dayco, Dorman, Mishimoto, and more.