Spectra FN840 Fuel Filler Neck

Brand Spectra FN840
Fits Ford, Lincoln, and Mercury · 18 vehicles

OE replacement. Meets or exceeds original equipment performance.

Fuel filler neck for dependable fuel delivery.

Cross-references 1L2Z9034AA, 1L2Z9034BA and 3L2Z9034BA for the same application. See all 11.

$167.18Free shipping
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Spectra FN840 Fuel Tank Filler Neck

The Spectra FN840 fuel tank filler neck is an OE-style replacement for select Ford, Lincoln, and Mercury SUVs. It is built for direct fitment on 2002-2005 Ford Explorer, 2003-2005 Lincoln Aviator, and 2002-2005 Mercury Mountaineer applications.

Key Features

  • Fuel tank filler neck replacement for air and fuel delivery service
  • Fits 2002-2005 Ford Explorer, N/A
  • Fits 2003-2005 Lincoln Aviator, N/A
  • Fits 2002-2005 Mercury Mountaineer, N/A
  • OE-style replacement part number FN840
  • Cross-reference: 1L2Z9034AA, 1L2Z9034BA

Detailed Description

Built by Spectra, part FN840 uses manufacturing controls and engineering standards aimed at matching the performance of the original fuel filler neck it replaces. This fuel tank filler neck is a direct replacement for the factory-style neck used on Ford Explorer, Lincoln Aviator, and Mercury Mountaineer models in the listed years. If you are servicing a leaking, rusted, or damaged filler neck on a 2002-2005 Ford Explorer or related Lincoln and Mercury platforms, FN840 provides the correct application-specific solution.

Common Issues This Part Can Address

  • Fuel odor near the rear of the vehicle caused by a damaged filler neck
  • Visible corrosion or rust on the original neck assembly
  • Fuel leakage during refueling
  • Restricted fuel flow at the tank inlet
  • Failed inspection due to deterioration in the fuel fill path

Installation Notes and Tips

Verify the vehicle year, make, and model before installation. Compare the original filler neck routing, mounting points, and hose connections to the FN840 unit before removal. Clean surrounding areas during service to reduce contamination at the fuel tank opening, and inspect related hoses and seals for wear while the assembly is accessible.

Quality Assurance

Spectra Premium fuel filler necks are engineered and manufactured to meet or exceed original equipment performance expectations for the listed applications. Part number FN840 is built for direct replacement use on the confirmed Ford Explorer, Lincoln Aviator, and Mercury Mountaineer fitments.

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005FordExplorer4.6LV8N/A—
2005FordExplorer4.0LV6N/A—
2005LincolnAviator4.6LV8N/A—
2005MercuryMountaineer4.6LV8N/A—
2005MercuryMountaineer4.0LV6N/A—
2004FordExplorer4.6LV8N/A—
2004FordExplorer4.0LV6N/A—
2004LincolnAviator4.6LV8N/A—
2004MercuryMountaineer4.6LV8N/A—
2004MercuryMountaineer4.0LV6N/A—
2003FordExplorer4.6LV8N/A—
2003FordExplorer4.0LV6N/A—
2003LincolnAviator4.6LV8N/A—
2003MercuryMountaineer4.6LV8N/A—
2003MercuryMountaineer4.0LV6N/A—
2002FordExplorer4.6LV8N/A—
2002FordExplorer4.0LV6N/A—
2002MercuryMountaineer4.6LV8N/A—
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1L2Z9034AA1L2Z9034BA3L2Z9034BA3L2Z9034BC3L2Z9034CA3L2Z9034CB577043577215FNF043JLCF043TNKFN840