Dorman 579-008 Fuel Tank Sending Unit Lock Ring

Fuel Tank Sending Unit Lock Ring for Mazda and Ford

Dorman 579-008 is a fuel tank sending unit lock ring used to secure the fuel pump assembly at the tank opening. It is made from durable rubber and includes a gasket or seal for service work where the sending unit has been removed.

Compatible with select Mazda B2200, Mazda B2600, Mazda 323, Mazda B2000, Mazda 626, Ford Festiva, and Mercury Tracer applications, this Dorman 579-008 lock ring is a direct-fit service part for fuel tank repair and maintenance.

Key Features

• Fuel tank sending unit lock ring for retaining the fuel pump assembly
• Durable rubber construction for reliable service
• Gasket or seal included for service replacement
• Direct replacement for select Mazda and Ford fuel system applications
• Part number 579-008 for easy identification

Detailed Description

Dorman 579-008 is recommended whenever the sending unit is serviced, helping secure the fuel pump assembly to the tank lock opening. The rubber construction supports dependable sealing and retention during fuel system maintenance. This part cross-references Spectra Premium LO08 for the same application. It is a practical replacement for Mazda B2200 and Mazda B2600 fuel tank service, as well as Ford Festiva and Mercury Tracer applications where the original lock ring needs replacement.

Use Dorman 579-008 when servicing fuel tank sending units on select Mazda and Ford vehicles to restore proper retention at the tank opening. The included seal helps complete the service interface between the sending unit and tank.

What This Part Helps Solve

• Loose or damaged fuel pump lock ring at the tank opening
• Fuel tank sending unit retention issues after service
• Seal wear at the sending unit mounting interface
• Fuel system reassembly problems during pump or sender replacement
• Need for a replacement lock ring on select Mazda B2000 and Mazda 626 applications

Installation Notes and Tips

Inspect the tank flange, sender flange, and sealing surfaces before installation. Replace worn or damaged sealing components during service, and verify the lock ring seats evenly before returning the vehicle to service. Confirm vehicle-specific fitment for the exact year and model before ordering.

Quality Assurance

Dorman manufactures replacement hardware for fuel system service, and this lock ring is built from durable materials for dependable use in the applications listed.