Dorman 579-032 Fuel Tank Sending Unit Lock Ring

Dorman 579-032 Fuel Tank Sending Unit Lock Ring

Dorman 579-032 is a fuel tank sending unit lock ring made for secure retention of the fuel pump assembly at the tank opening. Built from durable rubber and supplied with a seal, it is recommended for replacement whenever the sending unit is serviced on supported Toyota and Lexus applications.

Key Features

• Fuel tank sending unit lock ring for fuel pump service
• Rubber construction for dependable sealing support
• Inside diameter: 3.25 in; outside diameter: 3.75 in
• Lock ring diameter: 3.125 in
• Gasket or seal included
• Part number: 579-032

Application Details

This Dorman fuel pump lock ring is used to retain the sending unit and fuel pump assembly at the tank opening during service. It is a direct-fit service part for select Toyota and Lexus fuel system applications, including Fits 1996-2000 Toyota RAV4, N/A; Fits 1985-1995 Toyota 4Runner, N/A; Fits 1984-1995 Toyota Pickup, N/A; Fits 1988-1992 Toyota Corolla, N/A; Fits 1990-1991 Lexus ES250, N/A; and Fits 1987-1991 Toyota Camry, N/A, Fuel Pump; 7 Bolt Design. This part cross-references Spectra Premium LO32 for the same application.

What It Helps Address

• Loose or damaged fuel pump lock ring during sending unit service
• Fuel tank opening retention issues after pump or sender replacement
• Seal-related service concerns at the fuel pump module interface
• Fitment problems on select Toyota RAV4, 4Runner, Pickup, Corolla, Camry, and Lexus ES250 fuel tank assemblies
• Service interruptions caused by a worn or corroded retaining ring

Installation Notes and Tips

Verify tank opening diameter and lock ring style before installation. This part includes a seal, but mounting hardware is not included. Confirm the vehicle-specific configuration, especially the 7-bolt design noted for 1987-1991 Toyota Camry fuel pump applications, and replace the lock ring whenever the sending unit is serviced.

Quality Assurance

Dorman manufactures replacement hardware using durable materials for reliable service. The 579-032 lock ring is built to support secure fuel pump assembly retention in the applications listed above.