Spectra FN866 Fuel Tank Filler Neck

Fuel Tank Filler Neck Overview

The Spectra FN866 fuel tank filler neck is built for direct replacement service on select Dodge Durango applications. It is engineered to match original equipment performance and restore proper fuel transfer path integrity.

• Direct replacement fuel tank filler neck for select fuel storage applications
• Built with manufacturing technology and quality control focused on OE-level performance
• Fits 2011-2013 Dodge Durango, N/A
• Part number FN866 for easy identification

Detailed Product Information

Spectra Premium fuel filler necks are produced with engineering and manufacturing controls intended to meet or exceed the performance of the original part they replace. For Dodge Durango fuel system service, FN866 provides a replacement solution for the filler neck assembly that connects the fuel inlet path to the tank. This part number, FN866, is also cross-referenced to 4578993AE and 4578993AF for the same application.

Common Replacement Concerns

• Corrosion or damage at the filler neck assembly
• Fueling difficulty caused by a restricted or compromised neck
• Fuel odor from a worn or leaking filler path
• Fitment issues when replacing a damaged original neck

Installation Notes

Verify vehicle fitment before installation by matching the year, make, model, and application details. Compare the original filler neck configuration to FN866 before removal to confirm proper replacement. Professional installation is recommended for fuel system service.

Quality Assurance

Spectra Premium applies engineering, manufacturing technology, and quality control standards to this replacement fuel filler neck to support OE-level performance expectations.