Dorman 579-220 Fuel Tank Lock Ring

Fuel Tank Lock Ring for Toyota and Lexus

Dorman 579-220 is a direct replacement fuel tank lock ring for servicing the fuel sending unit. Built from durable rubber material with a black finish, it is made for a secure fit and reliable sealing performance on select Toyota, Lexus, and Scion applications.

Key Features

• Direct match for the original fuel tank lock ring
• Rubber construction for dependable service
• Black color for OE-style appearance
• Includes a gasket or seal
• Designed for fuel tank sending unit service
• Part number 579-220 for easy identification

Detailed Description

Dorman 579-220 fuel tank lock ring is a replacement hardware component used to secure the fuel sending unit at the tank opening. Its direct-fit design supports proper alignment and a tight, stable installation. With an inside diameter of 1.43 inches, outside diameter of 2.25 inches, thickness of 0.5 inch, and rim width of 0.44 inch, this lock ring is built to match the original part dimensions closely. This part cross-references Spectra Premium LO111 for the same application. It is a practical choice for Toyota Camry, Toyota Avalon, Lexus ES350, and related fuel system service where the original retaining ring has been removed or worn.

Vehicle Fitment

• Fits 2007-2012 Lexus ES350, N/A
• Fits 2005-2012 Scion tC, N/A
• Fits 2011-2012 Toyota Avalon, N/A
• Fits 2002-2012 Toyota Camry, N/A
• Fits 2002-2008 Toyota Solara, N/A
• Fits 2004-2006 Lexus ES330, N/A
• Fits 2002-2003 Lexus ES300, N/A

Common Repair Uses

• Fuel sending unit lock ring replacement during tank service
• Restoring a secure seal at the fuel tank opening
• Replacing a damaged, corroded, or distorted retaining ring
• Addressing fuel odor concerns caused by poor sealing at the sender assembly
• Supporting reassembly after fuel level sender or pump module service

Installation Notes and Tips

Inspect the tank flange, seal surface, and sending unit before installation. Replace the lock ring whenever the sending unit is serviced, and confirm the ring seats evenly around the opening before final assembly. Use the correct service procedure for the vehicle to avoid damaging the tank flange or seal.

Quality Assurance

Dorman manufactures this fuel tank lock ring as a direct replacement part for select Toyota, Lexus, and Scion vehicles. The design follows original part dimensions for proper fit and dependable service.