Product Overview
Shop LinesToGo for your 2003 GMC Sierra trucks. Our FL488-G2D 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 2003 GMC Sierra 1500 Exc. HD Ext Cab 6.5ft/8ft Bed for 4.8L Non Flex Fuel engines.
Location: Engine to Hose Connection off Fuel Tank
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.
OEM Part Number: 15126979, 15126983, 15765803
Included in Set: 1 supply line 3/8" ( in 2 easy to install sections), 1 return line 5/16" ( in 2 easy to install sections), 1 vapor line 5/16" ( in 2 easy to install sections), hoses to join rear and front sections, hoses to engine connection, 1 fuel filter
Tube Construction: Lines are constructed from Galfan® coated steel tubing for rust protection with original equipment end forms and fittings and are CNC (Computer Numerically Controlled) bent for an easy precise installation.
Hose Construction: All hoses are made from Stainless Steel Braided Teflon with OE style fittings
Warranty: 1 Year
Box Dimensions: 57" x 11" x 7"
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