HomeAir and Fuel Delivery > Fuel StorageSpectra FN777 Fuel Filler Neck - Upper
Part #: FN777

Spectra FN777 Fuel Filler Neck - Upper

Upper
⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Oldsmobile, LLV, S10 Blazer, Jimmy, Bravada, Typhoon, and S15 Jimmy
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Reliable Fuel Tank Filler Neck for Chevrolet, GMC, and Oldsmobile

The Spectra FN777 fuel tank filler neck is designed to provide a secure and efficient connection between the fuel filler cap and the fuel tank. Engineered for select Chevrolet, GMC, and Oldsmobile models, this part ensures proper fuel delivery and prevents leaks or contamination.

  • Compatible with Chevrolet Bravada, GMC Jimmy, S10 Blazer, and S15 Jimmy
  • Durable construction for long-lasting performance
  • Direct replacement for original equipment fuel tank filler neck
  • Part number FN777 for easy identification and ordering
  • Designed to maintain proper fuel system pressure and prevent vapor leaks

Product Details and Compatibility

The Spectra FN777 fuel tank filler neck is specifically engineered to fit Chevrolet Bravada, GMC Jimmy, S10 Blazer, and S15 Jimmy models. This fuel storage component connects the fuel filler opening to the fuel tank, allowing for safe and efficient refueling. Its construction meets OEM specifications to ensure a proper fit and function, reducing the risk of fuel leaks and vapor emissions. Using the correct filler neck helps maintain the integrity of the fuel system and supports vehicle emissions compliance.

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 fuel caps
  • Restores proper fuel system pressure and function

Installation Notes and Tips

Installation of the Spectra FN777 fuel tank filler neck requires basic automotive tools and moderate mechanical experience. Ensure the vehicle is parked on a level surface and the fuel system is depressurized before beginning. Remove the old filler neck carefully to avoid damage to surrounding components. Verify the new filler neck aligns correctly with the fuel tank inlet and filler cap opening. Tighten all clamps and fasteners securely to prevent leaks. Inspect the installation for proper sealing before completing the job.

Quality Assurance and Warranty Information

Manufactured by Spectra, the FN777 fuel tank filler neck meets industry standards for durability and fitment. While specific warranty details may vary, Spectra products typically include coverage against defects in materials and workmanship. Using a genuine replacement part like the FN777 helps maintain vehicle safety and fuel system integrity.

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1994ChevroletS10 Blazer4.3LV6N/A
1994ChevroletS10 Blazer3.1LV6N/A
1994GMCJimmy4.3LV6N/A
1994OldsmobileBravada4.3LV6N/A
1993ChevroletS10 Blazer4.3LV6N/A
1993ChevroletS10 Blazer3.1LV6N/A
1993GMCJimmy4.3LV6N/A
1993OldsmobileBravada4.3LV6N/A
1992ChevroletS10 Blazer4.3LV6N/A
1992ChevroletS10 Blazer3.1LV6N/A
1992GMCJimmy4.3LV6N/A
1992OldsmobileBravada4.3LV6N/A
1991ChevroletS10 Blazer4.3LV6N/A
1991ChevroletS10 Blazer3.1LV6N/A
1991GMCS15 Jimmy4.3LV6N/A
1991OldsmobileBravada4.3LV6N/A
1990ChevroletS10 Blazer4.3LV6N/A
1990GMCS15 Jimmy4.3LV6N/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:

15568005FNGM082TNKFN777

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