Spectra FN805 Fuel Tank Filler Neck

Spectra FN805 Fuel Tank Filler Neck

The Spectra FN805 fuel tank filler neck is an OE-style replacement for select Ford Super Duty applications. It is built for direct fitment on confirmed vehicles and supports reliable fuel transfer from the filler opening to the tank.

• Fuel tank filler neck for air and fuel delivery service
• Fits 2001-2004 Ford F-350 Super Duty, N/A
• Fits 1999 Ford F-350 Super Duty, N/A
• OE replacement for the original filler neck assembly
• Part number FN805 for catalog and cross-reference lookup

Application Details

Compatible With 1999 Ford F-350 Super Duty and 2001-2004 Ford F-350 Super Duty applications listed in the fitment data. This part cross-references 577307 for the same application. Use FN805 when replacing a damaged, corroded, or leaking filler neck on a Ford F-350 Super Duty fuel system.

Common Repair Reasons

• Fuel odor near the tank or filler area
• Visible corrosion, rust, or physical damage to the neck
• Fuel splash-back during refueling
• Leakage at the filler connection
• Restricted fuel filling caused by a deteriorated neck

Installation Notes

Verify vehicle year and model before installation. Match the existing routing and connection points to the original filler neck, and inspect surrounding fuel-system components for wear or corrosion during replacement. Confirm fitment for the exact Ford F-350 Super Duty application before service.

Quality Assurance

Spectra Premium fuel filler necks are manufactured with engineering, production controls, and quality checks intended to meet or exceed original equipment performance standards. Part number FN805 is built to support dependable replacement service on the listed Ford F-350 Super Duty applications.