Shop LinesToGo for your 2001 GMC Sierra trucks. Our FL488-G2B set of fuel lines for your GMC Sierra for 1500 Exc. HD with an Ext Cab and 4.8L non flex fuel engines.

Fuel Line Set 2001 GMC Sierra 1500 Exc. HD Ext Cab 6.5ft/8ft Bed 4.8L Non Flex Fuel engines.

Please Note: Original equipment Silverado/ Sierra front fuel line sections can be difficult to install from the engine connections down to the frame rail. These LinesToGo 888 Series come with front flexible stainless steel braided Teflon hoses, making a difficult and time consuming job, a whole lot easier and faster. Routing clips and hardware included.

Nylon Lines Between Fuel Lines and Fuel Tank:

Nylon lines between the fuel line and the fuel tank are not included. We do not make the nylon lines for this vehicle. However, you can purchase a nylon repair kit, 3069-01, which will attach to your existing nylon line providing a new connector for the supply and return lines to connect to.