Spectra FNA05 Fuel Filler Neck Grommet

Spectra FNA05 Fuel Filler Neck Grommet

The Spectra FNA05 fuel filler neck grommet is built for a direct OE-style seal between the filler neck and the fuel tank. It is engineered and validated by Spectra Premium’s Canadian engineering team to meet original equipment requirements for leak control and proper fit.

Compatible with 1998-2006 Mercury Grand Marquis, 1998-2004 Ford Grand Marquis, 1999-2004 Ford Mustang, and 2003-2004 Mercury Marauder.

Key Features

• OE-replacement fuel filler neck grommet for the tank-to-neck connection
• Designed to provide a leak-free seal at the fuel tank opening
• Engineered and validated to meet OE requirements
• Direct-fit service part for common Ford and Mercury applications
• Part number FNA05 for easy identification and ordering

Detailed Description

The Spectra FNA05 is a fuel filler neck grommet used to seal the interface where the filler neck enters the fuel tank. A worn or hardened grommet can allow fuel vapor or liquid seepage, create refueling concerns, and compromise the sealing surface at the tank. This replacement part is built for the 1998-2006 Mercury Grand Marquis, 1998-2004 Ford Grand Marquis, 1999-2004 Ford Mustang, and 2003-2004 Mercury Marauder, making it a practical choice for restoring the original sealing function on these vehicles. This part cross-references TNKFNA05 for the same application.

Common Issues It Can Help Address

• Fuel odor near the filler area
• Visible seepage at the filler neck-to-tank connection
• Cracked, dry, or deteriorated original grommet material
• Loose sealing at the fuel tank opening
• Refueling concerns caused by a poor neck-to-tank seal

Installation Notes and Tips

Inspect the filler neck, tank opening, and surrounding sealing surfaces before installation. Clean away corrosion, dirt, and old residue so the new grommet seats evenly. Verify the application by year and model before service, especially on Ford Mustang, Mercury Grand Marquis, and Mercury Marauder vehicles. Part number FNA05 should be matched to the vehicle’s original sealing style before installation.

Quality Assurance

Spectra Premium develops and validates this grommet in-house to meet OE requirements, with a focus on proper fit and sealing performance for fuel system service.