HomeAir and Fuel Delivery > Fuel StorageSpectra FN798 Fuel Tank Filler Neck
Part #: FN798

Spectra FN798 Fuel Tank Filler Neck

⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick and Pontiac, Bonneville and LeSabre
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Fuel Tank Filler Neck for Buick and Pontiac Vehicles

The Spectra FN798 fuel tank filler neck is designed to provide a secure and efficient connection between the fuel filler cap and the fuel tank. Specifically compatible with Buick Bonneville and Pontiac LeSabre models, this part ensures proper fuel delivery and prevents leaks during refueling.

  • Compatible with Buick Bonneville and Pontiac LeSabre models
  • Durable construction for long-lasting performance
  • Designed to maintain a tight seal and prevent fuel evaporation
  • Direct replacement for original equipment part number FN798
  • Ensures proper fuel flow and reduces risk of contamination

Product Details and Compatibility

The Spectra FN798 fuel tank filler neck is engineered to meet or exceed OEM specifications for fuel storage components. This part is essential for maintaining the integrity of the fuel system in Buick Bonneville and Pontiac LeSabre vehicles. By providing a reliable connection between the fuel filler cap and the fuel tank, it helps prevent fuel leaks and vapor loss, which can affect vehicle performance and emissions. The FN798 part number corresponds to a precise fitment, ensuring easy installation and compatibility with the specified models.

Common Applications and Problem Resolution

  • Replacement for cracked or damaged fuel tank filler necks
  • Eliminates fuel leaks during refueling
  • Prevents fuel vapor escape and reduces emissions
  • Resolves issues with loose or ill-fitting filler neck connections
  • Restores proper fuel flow to the tank

Installation Notes and Tips

When installing the Spectra FN798 fuel tank filler neck, ensure the vehicle is parked on a level surface and the engine is cool. Remove the old filler neck carefully to avoid damage to surrounding components. Verify that all clamps and seals are properly seated to maintain a secure connection. It is recommended to inspect the fuel filler cap and related hoses during installation to ensure overall system integrity.

Quality Assurance and Warranty Information

Manufactured by Spectra, the FN798 fuel tank filler neck undergoes rigorous quality control to meet industry standards. While specific warranty details are not provided, Spectra parts are known for their consistent reliability and fitment accuracy. Using this part helps maintain the fuel system’s performance and compliance with vehicle specifications.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005BuickLeSabre3.8LV6N/A
2005PontiacBonneville4.6LV8N/A
2005PontiacBonneville3.8LV6N/A
2004BuickLeSabre3.8LV6N/A
2004PontiacBonneville4.6LV8N/A
2004PontiacBonneville3.8LV6N/A
2003BuickLeSabre3.8LV6N/A
2003PontiacBonneville3.8LV6N/A
2002BuickLeSabre3.8LV6N/A
2002PontiacBonneville3.8LV6N/A
2001BuickLeSabre3.8LV6N/A
2001PontiacBonneville3.8LV6N/A
2000BuickLeSabre3.8LV6N/A
2000PontiacBonneville3.8LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2566623225727011577321FNGM01CFNSGM020GM012UGM020JLCGM020TNKFN798

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.