Dorman 577-239 Fuel Tank Filler Neck

Fuel Filler Neck Replacement

This Dorman fuel tank filler neck is built for specific vehicle applications and matches the original part for a reliable repair. It is a steel replacement for a leaking filler neck and is engineered and tested to follow the factory fit and function.

Key Features

• Steel construction for durable fuel system service.
• Precision-engineered to match the original filler neck.
• Thoroughly tested for fit and function.
• Includes a 1.1-inch inside diameter fill pipe.
• Fuel cap not included.

Detailed Description

Part number 577-239 is a direct replacement fuel filler neck for 2001-2003 Pontiac Grand Prix applications. It is designed for the fuel storage system and addresses the filler neck location where corrosion, cracking, or leakage can affect refueling performance. The steel construction and factory-style dimensions support a proper repair when the original neck no longer seals or routes fuel correctly. This part cross-references Spectra Premium FN543 for the same application.

Common Issues It Can Solve

• Fuel odor caused by a leaking filler neck.
• Visible corrosion or damage on the original neck.
• Refueling problems caused by a restricted or distorted fill pipe.
• Fuel cap sealing concerns when the neck no longer matches factory dimensions.

Installation Notes and Tips

Fits 2001-2003 Pontiac Grand Prix, N/A. Verify the vehicle’s original filler neck dimensions and routing before installation. Compare the replacement to the removed part to confirm the fill pipe diameter and overall length match the application. Part number 577-239 should be installed on the correct vehicle configuration listed in the fitment data.

Quality Assurance

Dorman manufactures this replacement as a tested, application-specific part for factory-style repair. Part number 577-239 is engineered to match the original filler neck for the listed vehicles.