Dorman 577-502 Fuel Filler Neck Seal

Reliable Fuel Filler Neck Seal for Ford, Lincoln, and Mercury Vehicles

The Dorman 577-502 fuel filler neck seal is designed to provide a secure and durable seal for the fuel tank filler neck on select Ford, Lincoln, and Mercury models. Crafted from high-quality rubber, this seal ensures proper fitment and prevents fuel leaks and vapor loss.

• Constructed from durable rubber material for long-lasting performance
• Inside diameter of 1.9 inches and outside diameter of 3.1 inches for precise fit
• Thickness of 0.9 inches to maintain a tight seal under various conditions
• Includes one fuel tank filler neck grommet per package
• Compatible with multiple Ford, Lincoln, and Mercury models including Mustang, Crown Victoria, and Continental

Detailed Product Description

The Dorman 577-502 fuel filler neck seal is engineered to meet the specifications required for a proper seal between the fuel filler neck and the fuel tank. Made from resilient rubber, it resists fuel and environmental exposure, maintaining its integrity over time. The seal’s dimensions—1.9 inches inside diameter, 3.1 inches outside diameter, and 0.9 inches thickness—are designed to fit securely and prevent fuel vapor leaks. This part is compatible with a range of Ford, Lincoln, and Mercury vehicles, including the Mustang, Thunderbird, Crown Victoria, and Mark VIII, ensuring reliable performance across multiple applications.

Common Applications and Issues Addressed

• Prevents fuel leaks around the filler neck area
• Stops fuel vapor from escaping, aiding emissions control
• Eliminates fuel odor caused by deteriorated seals
• Reduces risk of contamination entering the fuel tank
• Helps maintain proper fuel system pressure

Installation Notes and Tips

Before installation, inspect the fuel filler neck and surrounding area for damage or corrosion. Clean the mounting surface thoroughly to ensure a proper seal. Lubricate the rubber seal lightly with a compatible lubricant to ease installation and prevent damage. Ensure the seal is seated evenly around the filler neck to avoid leaks. This part is designed for direct replacement and should fit securely without modification.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 577-502 fuel filler neck seal undergoes rigorous quality control to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to provide confidence in your purchase.