Dorman 579-004 Fuel Tank Sending Unit Lock Ring

Reliable Fuel Tank Sending Unit Lock Ring for Ford, Lincoln, Mercury

The Dorman 579-004 fuel tank sending unit lock ring is designed to provide a secure seal and reliable fitment for various Ford, Lincoln, and Mercury vehicles. Crafted from durable metal, this lock ring ensures proper installation and sealing of the fuel pump assembly.

Key Features of Dorman 579-004 Lock Ring

• Constructed from sturdy metal for long-lasting durability
• Inside diameter measures 3.5 inches for precise fit
• Outside diameter of 4.25 inches ensures compatibility with OEM components
• Includes a gasket or seal to maintain a tight, leak-free connection
• Lock ring diameter of 3.625 inches designed for secure fastening
• Package contains one fuel pump lock ring

Detailed Product Description

The Dorman 579-004 fuel tank sending unit lock ring is engineered to meet the specifications required for proper fuel pump assembly installation on select Ford, Lincoln, and Mercury models. Its metal construction provides the necessary strength to hold the fuel sending unit securely in place, preventing fuel leaks and maintaining system integrity. The included gasket or seal enhances the sealing capability, reducing the risk of vapor or liquid fuel escaping. With precise inside and outside diameters, this lock ring fits models such as the Ford F-150, E-250 Econoline, Lincoln Town Car, and Mercury Cougar, among others.

Compatible Vehicles and Common Applications

• Ford Bronco, Bronco II, F-150, F-250, F-350, Ranger, Tempo, Escort, E-150/E-250/E-350 Econoline and Club Wagon variants
• Lincoln Continental, Town Car, Mark VII, Mark VIII, Grand Marquis, LN7, LTD, Colony Park
• Mercury Cougar, Lynx, Topaz, Marquis, Thunderbird
• Designed to replace worn or damaged fuel tank sending unit lock rings
• Helps resolve fuel pump assembly leaks and improper sealing issues

Installation Notes and Tips

When installing the Dorman 579-004 lock ring, ensure the gasket or seal is properly seated to prevent leaks. Use appropriate tools to tighten the lock ring evenly without over-torquing, which could damage the fuel tank or sending unit. This lock ring does not include mounting hardware, so retain any original fasteners during replacement. Verify fitment with your specific vehicle model and year before installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 579-004 fuel tank sending unit lock ring undergoes quality checks to ensure proper dimensions and material integrity. Please refer to Dorman's warranty policy for coverage details.