HomeAir and Fuel Delivery > Fuel StorageSpectra FN784 Fuel Tank Filler Neck
Part #: FN784

Spectra FN784 Fuel Tank Filler Neck

⚙️ 42 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-250 Super Duty and F-350 Super Duty
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Fuel Tank Filler Neck for Ford Super Duty Trucks

The Spectra FN784 fuel tank filler neck is designed specifically for Ford F-250 Super Duty and F-350 Super Duty models. This replacement part ensures proper fuel delivery and secure connection between the fuel cap and the tank, maintaining the integrity of your vehicle's fuel system.

  • Compatible with Ford F-250 Super Duty and F-350 Super Duty models
  • Durable construction for long-lasting performance
  • Direct replacement for original equipment fuel tank filler neck
  • Part number FN784 for easy identification and ordering
  • Designed to maintain proper fuel flow and prevent leaks

Product Details and Specifications

The Spectra FN784 fuel tank filler neck is engineered to meet OEM standards for fit and function on Ford Super Duty trucks. It connects the fuel filler cap to the fuel tank, providing a sealed path for refueling. This part is manufactured with materials that resist corrosion and wear, ensuring consistent performance over time. The FN784 is a precise fit for the fuel storage system of Ford F-250 and F-350 Super Duty models, helping to maintain fuel system integrity and prevent contamination.

Common Applications and Problem Resolution

  • Replacement for damaged or corroded fuel tank filler necks
  • Eliminates fuel leaks around the filler area
  • Prevents fuel vapor escape and maintains emission standards
  • Restores proper fuel flow during refueling
  • Addresses issues with loose or ill-fitting fuel caps

Installation Notes and Tips

Installation of the Spectra FN784 fuel tank filler neck requires basic mechanical skills and tools. 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. Align the new filler neck properly and secure it according to manufacturer specifications. Verify that the fuel cap seals correctly after installation to prevent leaks.

Quality Assurance and Warranty Information

Spectra parts are manufactured to meet or exceed OEM quality standards. The FN784 fuel tank filler neck undergoes rigorous testing to ensure durability and proper fitment on Ford F-250 Super Duty and F-350 Super Duty trucks. While specific warranty details are not provided, Spectra products typically come with a limited warranty against defects in materials and workmanship.

This part fits 42 vehicles. Search below:

YearMakeModelBody TypeBed LengthLitersCylindersPositionNotes
2005FordF-250 Super DutyStandard Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2005FordF-250 Super DutyExtended Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2005FordF-250 Super DutyCrew Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2005FordF-350 Super DutyStandard Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2005FordF-350 Super DutyExtended Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2005FordF-350 Super DutyCrew Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2004FordF-250 Super DutyStandard Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2004FordF-250 Super DutyExtended Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2004FordF-250 Super DutyCrew Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2004FordF-350 Super DutyStandard Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2004FordF-350 Super DutyExtended Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2004FordF-350 Super DutyCrew Cab Pickup6' 9" Foot Bed6.0LV8N/ADual Rear Wheels (DRW)
2003FordF-250 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2003FordF-250 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2003FordF-250 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2003FordF-250 Super DutyStandard Cab Pickup6' 9" Foot BedN/ADual Rear Wheels (DRW)
2003FordF-250 Super DutyExtended Cab Pickup6' 9" Foot BedN/ADual Rear Wheels (DRW)
2003FordF-250 Super DutyCrew Cab Pickup6' 9" Foot BedN/ADual Rear Wheels (DRW)
2003FordF-350 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2003FordF-350 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2003FordF-350 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2003FordF-350 Super DutyStandard Cab Pickup6' 9" Foot BedN/ADual Rear Wheels (DRW)
2003FordF-350 Super DutyExtended Cab Pickup6' 9" Foot BedN/ADual Rear Wheels (DRW)
2003FordF-350 Super DutyCrew Cab Pickup6' 9" Foot BedN/ADual Rear Wheels (DRW)
2002FordF-250 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2002FordF-250 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2002FordF-250 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2002FordF-350 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2002FordF-350 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2002FordF-350 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2001FordF-250 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2001FordF-250 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2001FordF-250 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2001FordF-350 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2001FordF-350 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2001FordF-350 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2000FordF-250 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2000FordF-250 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2000FordF-250 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2000FordF-350 Super DutyStandard Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2000FordF-350 Super DutyExtended Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)
2000FordF-350 Super DutyCrew Cab Pickup6' 9" Foot Bed7.3LV8N/ADual Rear Wheels (DRW)

* 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:

1C3Z9034PA3C3Z9034PBTNKFN784XC3Z9034BAXC3Z9034DA

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