Spectra Premium Fuel Tank Filler Neck P/N:FN728
Keep refueling clean and vapor-tight with the Spectra Premium Fuel Tank Filler Neck FN728, a direct-fit replacement for the 1999-2010 Ford F-250 Super Duty and 1999-2010 Ford F-350 Super Duty. The filler neck is the tube that carries fuel from the gas-cap opening down into the fuel tank each time you fill up, so a corroded or leaking neck is a common source of fuel odor and pump-nozzle shut-off trouble.
- Direct-fit replacement: designed to install on the listed F-250 and F-350 Super Duty applications.
- Core job: routes fuel from the filler-cap opening into the tank during refueling and seals against fuel and vapor escape.
- Signs it may need replacing: fuel smell around the filler area, visible seepage or staining, surface rust/corrosion on the neck, or the pump nozzle clicking off early.
If a corroded or damaged filler neck is the cause of your fuel leak or refueling problem, this replaces it. Diagnose the source of any leak or odor before ordering.
Interchange: 4063233 · KFN324 · 577728 · F074 · FNSF050WC · 4C3Z9034B · 8C3Z9034K · 8C3Z9034KE · 8C3Z9034KF · F81Z9034PA · F81Z9034PB · YC3Z9034KA · F050 · F096 · JLCF050 · TNKFN728 · FNF050 · FNF074 · FNF096. Manufacturer part number FN728.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the FN728 filler neck fit?
It's a direct-fit replacement for the 1999-2010 Ford F-250 Super Duty and 1999-2010 Ford F-350 Super Duty. Check the Buyer's Guide tab to confirm the fit for your specific truck.
What does a fuel tank filler neck do?
It's the tube that carries fuel from the gas-cap opening down into the fuel tank during refueling, while sealing against fuel and vapor escape.
How do I know if my filler neck needs replacing?
Common signs include a fuel smell near the filler area, visible seepage or staining, rust on the neck, or the pump nozzle clicking off early. Diagnose the source first.
Will this fix my fuel leak?
If a corroded or damaged filler neck is the cause of the leak or fuel odor, this part replaces it. Verify the leak's source before ordering, as other components can also leak.
What interchange numbers does this part cover?
It cross-references 4063233, KFN324, 577728, F074, FNSF050WC, 4C3Z9034B, 8C3Z9034K, 8C3Z9034KE, 8C3Z9034KF, F81Z9034PA, F81Z9034PB, YC3Z9034KA, F050, F096, JLCF050, TNKFN728, FNF050, FNF074 and FNF096.
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