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Fuel Filler Neck

Capless aftermarket fuel filler neck for Ford applications by Spectra Premium

The fuel filler neck is the primary point of entry for fuel in a vehicle. It is used to bring fuel from the pump nozzle down to the fuel tank.

Each Spectra Premium fuel filler neck has a dual paint coating to protect against corrosion and electro-static discharge

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Spectra Part Number Most Popular Applications North American VIO
FN770 2004 Chevrolet Silverado 1500 3,431,211
FN795 2000 Chevrolet Silverado 1500 2,936,289
FN506 1994 Chevrolet C1500 2,492,939
FN540 2004 Ford F-150 2,438,674
FN796 2000 Chevrolet Silverado 1500 2,288,045
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Capless Filler Necks

  • Simplified and more reliable design vs OE
  • Performance tested for endurance and temperature
  • Meets OE performance and functionality

Accessories available

  • Fuel Filler Neck Hose
  • Filler Neck Grommet
  • Filler Neck Funnel
  • Filler Neck Shut-off Valve

Common Filler Neck Failure Symptoms

  • Smell of gasoline
  • Fuel vacuum leaks which will cause the "check engine" light to turn on

Common Causes of Failure

Rust is the primary cause of failure for filler necks.

Over time, ambient air and contaminants will cause corrosion on the outside of the filler neck. If left unchecked, corrosion will eventually create holes and cracks in the main pipe body causing it to leak fuel to the ground and vapors into the atmosphere. Cracks and/or holes in the vent hoses can also cause fuel to leak onto the outside of the filler neck, accelerating corrosion around the fuel tank area. Rust in the tank can contaminate the fuel and cause further damage to the vehicle.

Failure to replace or repair the damage may cause vehicle to lose power

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