Shop LinesToGo for your 2005  GMC Sierra fuel lines. The FL588-F2A set of fuel lines are designed for all C/K2500HD/3500/3500HD models with a regular cab, 8ft bed and a 6.6L engine. The model must have an engine code that reads LLY, LBZ. Stainless Steel

Fuel Cooler Line included

Not Included in Set: Hoses between fuel line and fuel tank 5069-01B and Cooler Connector Lines FL591-A2E or SS591-A2E. 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.