Find the Fuel System Plumbing you need to repair or modify the fuel system in your 2004.5-2005 Chevy/GMC 6.6L LLY Duramax. You'll find the fuel lines, cushioned hose clamps, fuel pressure regulators, fuel filter delete kits, and many more products. Finish your fuel system project with universal components as well as model specific items. Find the most popular diesel brands like Fuel Lab, XDP, Vibrant Performance, FASS, and more.