Dorman 577-391 Fuel Tank Filler Neck

Fuel Tank Filler Neck for Dodge Durango

This Dorman fuel tank filler neck is a direct replacement for select Dodge Durango applications. Built from steel and engineered to match the original filler neck dimensions, it addresses leaking fuel filler neck concerns with a repair made for specific model years.

Key Features

• Steel construction for fuel system durability
• 29-inch length for the specified Durango applications
• 1.13-inch inside diameter fill pipe
• Fuel cap not included
• Package contents: fuel filler neck
• Dorman Part Number 577-391

Detailed Description

Dorman 577-391 is a replacement fuel tank filler neck for 2002-2003 Dodge Durango and 2000-2001 Dodge Durango with Federal Emissions. It is precision-engineered and tested to match the original filler neck for the listed vehicles, helping restore proper fuel fill function and sealing performance. This part cross-references Spectra Premium FN598 for the same application.

For Dodge Durango owners dealing with corrosion, cracking, or fuel odor near the fill area, this filler neck provides an OE-style repair path. The steel tube construction and application-specific dimensions support a proper fit on the listed Durango years, including 2000-2001 Dodge Durango, Federal Emissions, and 2002-2003 Dodge Durango.

What It Helps Fix

• Fuel leaking around the filler neck
• Fuel odor near the rear quarter or fill area
• Corrosion or rust damage on the original neck
• Cracks or separation in the fuel fill tube
• Difficulty refueling caused by a damaged neck

Installation Notes

Verify vehicle year, engine/emissions configuration, and filler neck routing before installation. Compare the original neck length, inside diameter, and mounting points to confirm the replacement matches your Dodge Durango application. Transfer any vehicle-specific components not included with the part as needed.

Quality Assurance

Dorman tests this replacement fuel filler neck against original equipment dimensions and fit requirements for the listed applications. Part number 577-391 is built for specific Dodge Durango fitment and is backed by Dorman's product engineering standards.