Dorman 579-224 Fuel Tank Lock Ring

Dorman 579-224 Fuel Tank Lock Ring

Dorman 579-224 is a direct-match fuel tank lock ring for servicing the sending unit and fuel tank assembly. Built from durable rubber material with corrosion resistance, it helps maintain a secure seal and proper retention during fuel system service.

Key Features

• Direct replacement fuel tank lock ring for OE-style fit
• Rubber construction for dependable sealing performance
• Corrosion resistant for long-term service in fuel system environments
• Black finish
• Gasket or seal included
• Inside diameter: 5.25 in; outside diameter: 7.25 in; thickness: 0.12 in
• Lock ring diameter: 4.5 in; rim width: 1 in

Detailed Description

This Dorman fuel tank lock ring is made as a direct match to the original part and is recommended whenever the sending unit is serviced. The rubber construction and corrosion-resistant design support a secure fit at the tank opening, helping the fuel sender assembly stay properly retained. Dorman 579-224 is a practical replacement for Subaru Forester, Subaru Impreza, and Subaru Legacy fuel tank service where the original lock ring has worn, distorted, or corroded.

This part cross-references Spectra Premium LO155 for the same application.

What It Helps Fix

• Loose or damaged fuel tank sending unit retention
• Corrosion at the tank lock ring interface
• Fuel odor caused by a poor seal at the sender opening
• Service issues after fuel pump or sending unit replacement
• Fitment problems from a worn original lock ring

Installation Notes and Tips

Install the lock ring during fuel tank or sending unit service and verify the ring seats evenly around the opening. Clean the mating surfaces before assembly and confirm the seal is positioned correctly before tightening. For fitment reference, this part fits 1998-2008 Subaru Forester, 1993-2007 Subaru Impreza, and 1990-1999 Subaru Legacy.

Quality Assurance

Dorman manufactures this replacement lock ring as a direct-fit service part for fuel system repair. The design focuses on secure retention, corrosion resistance, and OE-style dimensions for consistent installation.