Spectra FN806 Fuel Tank Filler Neck - Rear

Brand Spectra FN806
Position Rear
Fits Ford · 5 vehicles

OE direct replacement. Meets or exceeds original equipment performance.

Fuel tank filler neck for dependable fuel delivery.

Cross-references 4C3Z9034D, 8C3Z9034M and 8C3Z9034MF for the same application. See all 6.

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Spectra FN806 Fuel Tank Filler Neck

The Spectra FN806 fuel tank filler neck is a direct-fit replacement for select Ford Super Duty applications. It is built to match original equipment performance standards for secure fuel transfer and dependable tank refueling.

Compatible with 2006-2010 Ford F-350 Super Duty applications, including rear-position fitment for 2008 Ford F-350 Super Duty models.

Key Features

  • Fuel tank filler neck for air and fuel delivery repair
  • OE-style replacement for select Ford F-350 Super Duty trucks
  • Engineered to meet or exceed original equipment performance
  • Application-specific fitment for 2006-2010 Ford F-350 Super Duty
  • Part number FN806 for catalog and cross-reference lookup

Detailed Description

Spectra FN806 is a fuel tank filler neck for the Ford F-350 Super Duty, covering 2006-2007, 2008 rear, and 2009-2010 applications. It is intended for vehicles that need a replacement filler neck to restore proper fuel fill routing between the fuel door and tank. This part cross-references TNKFN806 for the same application. Use FN806 when servicing a Ford F-350 Super Duty fuel system and you need a replacement that follows OE fit and function expectations.

Common Repair Uses

  • Fuel leakage at the filler neck connection
  • Corrosion or damage to the original filler neck
  • Restricted or difficult fuel filling
  • Fuel odor caused by a compromised neck assembly
  • Replacement during fuel tank service on a Ford F-350 Super Duty

Installation Notes and Tips

Verify year, model, and position before installation. This part fits 2006-2007 Ford F-350 Super Duty, 2008 Ford F-350 Super Duty rear, and 2009-2010 Ford F-350 Super Duty. Compare the original filler neck routing and mounting points to confirm correct application for your truck. Inspect surrounding fuel hoses, seals, and tank connections during service.

Quality Assurance

Spectra Premium states that its engineering, manufacturing processes, and quality control are used to ensure filler necks meet or exceed the performance of the original equipment they replace.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
2010FordF-350 Super DutyCab & Chassis6.4LV8N/A
2009FordF-350 Super DutyCab & Chassis6.4LV8N/A
2008FordF-350 Super DutyCab & Chassis6.4LV8Rear
2007FordF-350 Super DutyCab & Chassis6.0LV8N/A
2006FordF-350 Super DutyCab & Chassis6.0LV8N/A
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
4C3Z9034D8C3Z9034M8C3Z9034MF8C3Z9034SFNF132TNKFN806