Dorman 579-013 Fuel Tank Sending Unit Lock Ring

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

Dorman 579-013 is a metal fuel tank sending unit lock ring used to secure the fuel pump assembly at the tank opening. It is a direct replacement style part for service work on Ford Taurus, Mercury Sable, Lincoln Continental, and other listed applications where the sending unit must be retained firmly in place.

Key Features

• Metal construction for durable service in fuel system applications
• Inside diameter: 1.875 in.
• Outside diameter: 4.25 in.
• Lock ring diameter: 4.625 in.
• Gasket or seal included for service replacement
• Designed for fuel tank sending unit and fuel pump assembly retention

Detailed Description

This Dorman fuel tank sending unit lock ring is recommended whenever the sending unit is serviced. It helps retain the fuel pump assembly to the tank lock opening and is built from metal for reliable fit and service life. The included gasket or seal supports a proper service repair at the tank opening. Part number 579-013 is used across multiple Ford, Mercury, and Lincoln fuel system applications, including Taurus, Sable, Continental, Crown Victoria, Town Car, and Grand Marquis models.

This part cross-references OE-style part numbers E6DZ9C385A and Spectra Premium LO13 for the same application.

What It Helps Fix

• Loose or damaged fuel pump retaining ring
• Fuel tank sending unit service issues
• Improper retention at the tank opening
• Seal-related service concerns during pump or sender replacement
• Corrosion or wear on the original lock ring

Installation Notes and Tips

• Compatible With 1986-1999 Ford Taurus, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1986-1999 Mercury Sable, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1988-1997 Lincoln Continental, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1992-1996 Ford E-150 Econoline, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1992-1996 Ford E-150 Econoline Club Wagon, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1992-1996 Ford E-250 Econoline, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1992-1996 Ford E-350 Econoline, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1992-1996 Ford E-350 Econoline Club Wagon, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1992-1994 Ford Crown Victoria, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1990-1994 Lincoln Town Car, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket
• Compatible With 1990-1994 Mercury Grand Marquis, N/A; 4.625 In. I.D.; Kit Contains 1 Retainer and 1 Gasket

Verify the tank opening diameter and lock ring style before installation. Clean the sealing surface thoroughly and inspect the sender flange for wear or damage before securing the assembly.

Quality Assurance

Dorman manufactures replacement hardware for fuel system service with application-specific dimensions and materials. Part number 579-013 is built as a service replacement for the listed Ford, Mercury, and Lincoln applications.