Shop LinesToGo for your 2010 GMC Sierra fuel lines. The SS588-D6A set of fuel lines are crafted for any C/K2500HD/3500 trucks with a crew cab and a 6.6L engine. They must also have an engine code reading LBZ, LMM. Stainless Steel.

Fuel Cooler Line included

Not Included in Set: Hoses between fuel line and fuel tank 5069-01D and Cooler Connector Lines FL591-A2G or SS591-A2G. These parts are available for purchase separately

Please Note: If you have purchased an aftermarket replacement fuel cooler, the fuel cooler connector lines attached to the fuel cooler may be different than the OEM fuel cooler connector lines. As shown under images - in Illustration A, the aftermarket fuel cooler connector lines are made with a straight sharp edge. When these are plugged into the fuel cooler line, they will cut the o-ring inside the connector causing a leak. If you wish to replace the fuel cooler connector lines before installation of the fuel cooler line, they are available to purchase under part number FL591-A as shown in Illustration B

We are unable to warranty any of our products that are damaged by aftermarket fuel cooler connector lines.