Spectra FN556 Fuel Filler Neck

Spectra FN556 Fuel Tank Filler Neck

The Spectra FN556 fuel tank filler neck is an OE-style replacement for select GM compact cars and related models. It is built with engineering, manufacturing, and quality control standards intended to match or exceed original equipment performance.

• Fuel tank filler neck for air and fuel delivery repair
• Direct-fit replacement for select Chevrolet Cavalier, Pontiac Sunbird, Buick Skyhawk, Cadillac Cimarron, Oldsmobile Firenza, Pontiac J2000 Sunbird, and Pontiac J2000 applications
• Built to restore proper fuel fill path and tank connection
• Cross-references Spectra Premium FN556 and GM166 for the same application
• Part number FN556 for catalog and fitment lookup

Detailed Application Coverage

Compatible With 1982-1994 Chevrolet Cavalier, 1986-1994 Pontiac Sunbird, 1982-1989 Buick Skyhawk, 1982-1988 Cadillac Cimarron, 1982-1988 Oldsmobile Firenza, 1984-1985 Pontiac J2000 Sunbird, and 1982-1983 Pontiac J2000. This filler neck is a practical replacement when the original neck is corroded, damaged, or no longer seals and routes fuel correctly. The Spectra FN556 is made for vehicles that need a direct replacement fuel tank filler neck without changing the original fuel system layout.

Common Repair Uses

• Corrosion or rust at the filler neck
• Fuel leakage around the tank inlet area
• Cracked, bent, or damaged filler tube
• Difficulty refueling due to restricted fuel flow path
• Failed original neck on a Chevrolet Cavalier or Pontiac Sunbird

Installation Notes

Verify year, make, model, and fuel system routing before installation. Compare the original filler neck shape, mounting points, and hose connections to the replacement part number FN556. Professional installation is recommended to confirm proper fitment and sealing at the tank connection.

Quality Assurance

Spectra Premium states that its fuel filler necks are produced with engineering, manufacturing technology, and quality control processes aimed at meeting or exceeding original equipment performance.