Spectra FN779 Fuel Filler Neck

Reliable Fuel Tank Filler Neck for Cadillac, Chevrolet, and GMC

The Spectra FN779 fuel tank filler neck is designed to provide a secure and precise fit for select Cadillac, Chevrolet, and GMC models. Engineered to meet OEM specifications, this part ensures proper fuel delivery and prevents leaks or contamination during refueling.

• Compatible with Cadillac Escalade and Escalade EXT
• Fits Chevrolet Tahoe models
• Designed for GMC Yukon vehicles
• Durable construction for long-lasting performance
• OEM-quality fit and finish for easy installation

Product Details and Specifications

The Spectra FN779 fuel tank filler neck is manufactured to match the exact dimensions and material standards required for the fuel systems of Cadillac Escalade, Escalade EXT, Chevrolet Tahoe, and GMC Yukon. This component connects the fuel filler cap to the fuel tank, ensuring a sealed and efficient fuel transfer path. Its robust design resists corrosion and wear, maintaining fuel system integrity over time. The part number FN779 corresponds to this specific filler neck, making it straightforward to identify and replace in your vehicle’s fuel storage system.

Common Applications and Problem Resolution

This fuel tank filler neck is used to replace damaged or worn filler necks that can cause issues such as:

• Fuel leaks during refueling
• Difficulty in fueling due to misalignment or damage
• Fuel odor or vapor leaks around the filler area
• Check engine light triggered by evaporative emissions system faults
• Corrosion or cracks compromising fuel system safety

Installation Notes and Tips

Installation of the Spectra FN779 filler neck requires basic mechanical skills and tools. It is recommended to:

• Ensure the vehicle is parked on a level surface and the engine is cool
• Relieve fuel system pressure before removal
• Remove the old filler neck carefully to avoid damaging surrounding components
• Verify the new filler neck aligns properly with the fuel tank and filler cap
• Tighten all clamps and connections securely to prevent leaks

Quality Assurance and Warranty Information

Spectra manufactures the FN779 fuel tank filler neck to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details may vary, Spectra parts typically come with a limited warranty against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.