4" Fuel Filler Neck w/ Vent Port For Chevy & GMC 2500 3500 HD Heavy Duty Cab & Chassis Trucks - BuyAutoParts

Guaranteed Exact Fit for easy installation 100% BRAND NEW, premium ISO/TS 16949 quality Engineered for superior durability, backed by a one year, unlimited-mileage warranty Fits like OEM, designed to fit your original fuel tank or any other stock replacement Please enter your vehicle details on the website to confirm fitment, but this fits certain specific Chevy& GMC 2500 & 3500 cab & chassis trucks - it does not fit any trucks with a pickup bed. It's 4" long and has a single vent for the vapor control system