Spectra Premium FN679 Fuel Tank Filler Neck Replacement - Durable OEM-Compatible Auto Part for Chevy, GMC, Cadillac | Perfect for Off-Roading, Towing & Daily Commuting

Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank filler necks meet or exceed the performance of the original equipment they replace.

Unit is designed to Original Equipment (OE) fit, form and function requirements accomplished by leveraging Spectra Premium's OE fuel system design expertise

Unit is dual coated for enhanced corrosion protection

Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed

Unit is leak tested after production to ensure product in free from fuel and / or evaporative leaks

Tested with OE fuel cap to prevent EVAP and check engine light failure