Shop LinesToGo for your 2001 GMC Sierra trucks. Our FL488-G8A set of fuel lines are designed with your  2500 Exc HD with an extended cab and a 6.0L engine.

Fuel Line Set 01 Sierra 2500 Exc. HD Ext Cab 6.5ft bed 2WD & 4WD for 6.0L engines.

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.

Nylon Installation Instructions:

Step 1

Cut the new nylon hose in the same position as the original nylon hose.

Step 2

Cut the original nylon hose in the same position as the new nylon hose.

Step 3

Use the original nylon hose with connector and attach it with supplied union to the new nylon hose.