Rust Buster Fuel Tank Filler Neck For 1999-2010 Ford F-Series Super Duty RB800004

RB800004
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  • Fits 1999-2010 Ford F-250 Super Duty 8ft Bed
  • Fits 1999-2010 Ford F-350 Super Duty 8ft Bed
  • Fits all Cab Sizes
  • Does not fit Cab & Chassis Models
  • Direct OE Replacement
  • Replaces the Following Ford Part Number(s)
    • 4C3Z-9034-B
    • 8C3Z-9034-K
    • 8C3Z-9034-KE
    • 8C3Z-9034-KF
    • F81Z-9034-PA
    • F81Z-9034-PB
    • YC3Z-9034-KA

Rust Buster Fuel Tank Filler Necks are OE replacements designed to fix rusted, leaking, or damaged factory units. Built for Exact Fit and reliable fuel flow, they restore a secure connection between the fuel tank and fill point while helping eliminate vapor leaks and fueling issues. Durable, corrosion-resistant construction ensures long-term performance and straightforward installation.

Inventory Last Updated: Jul 22, 2026
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