Dorman 579-058 Fuel Tank Sending Unit Lock Ring

Dorman 579-058 Fuel Tank Lock Ring

Dorman 579-058 is a fuel tank sending unit lock ring made for securing the fuel pump assembly to the tank opening after service. Built from steel and rubber, it provides a direct replacement solution for 1993-1997 Chevrolet Camaro and 1993-1997 Pontiac Firebird fuel system repairs.

Key Features

• Steel and rubber construction for durable retention
• 4.47 in lock ring diameter with 3.73 in inside diameter
• Includes gasket or seal for service replacement
• Used to retain the fuel pump assembly at the tank lock
• Fits 1993-1997 Chevrolet Camaro and 1993-1997 Pontiac Firebird

Detailed Description

This fuel tank sending unit lock ring is used during fuel pump or sending unit service to secure the assembly in the tank opening. Dorman 579-058 matches the application for 1993-1997 Chevrolet Camaro and 1993-1997 Pontiac Firebird models, making it a practical replacement when the original ring is worn, damaged, or no longer holds the assembly firmly. This part cross-references Spectra Premium LO58 for the same application.

The ring’s steel and rubber construction supports reliable service in the fuel tank environment, while the included seal helps complete the service point at the sending unit opening. The Dorman 579-058 part number is also useful when searching for a fuel pump lock ring for Camaro and Firebird fuel tank repairs.

What It Helps Fix

• Loose or damaged fuel pump retaining ring
• Fuel tank sending unit service issues
• Poor sealing at the pump module opening
• Retainer wear from repeated tank service
• Replacement needs during fuel pump assembly repair

Installation Notes and Tips

Install the lock ring during fuel tank sending unit or fuel pump service and verify the ring seats evenly around the tank opening. Inspect the sealing surface before assembly and replace any damaged components at the same time. Confirm vehicle application before ordering, especially for 1993-1997 Chevrolet Camaro and 1993-1997 Pontiac Firebird fuel system repairs.

Quality Assurance

Dorman manufactures replacement hardware for automotive repair applications, and this 579-058 lock ring is built to provide dependable retention for the fuel pump assembly during service.