Dorman 579-038 Fuel Tank Sending Unit Lock Ring

Fuel Tank Sending Unit Lock Ring for Service Replacement

Dorman 579-038 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 gasket or seal, it is a practical replacement when servicing the sending unit on select Pontiac, Suzuki, and Chevrolet applications.

Key Features

• Fuel tank sending unit lock ring for retaining the fuel pump assembly
• Durable rubber construction for reliable service
• Inside diameter: 3.25 in; outside diameter: 3.75 in
• Lock ring diameter: 1.25 in
• Gasket or seal included for service work
• Compatible with select 1989-1996 Pontiac Sunrunner, Suzuki Samurai, Suzuki Sidekick, and Chevrolet Tracker applications

Detailed Description

Dorman 579-038 is used to secure the sending unit and fuel pump assembly to the fuel tank opening after service. It is a direct-fit style replacement for select vehicles, including 1994-1996 Pontiac Sunrunner, 1990-1995 Suzuki Samurai, 1989-1994 Suzuki Sidekick, and 1989-1991 Chevrolet Tracker models. This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

The rubber construction helps provide dependable retention at the tank interface, while the included seal supports a proper service replacement. For buyers searching for a fuel tank sending unit lock ring for Suzuki Samurai, Suzuki Sidekick fuel pump service parts, or Chevrolet Tracker sending unit hardware, Dorman 579-038 is the relevant OE-style replacement.

What It Helps Address

• Loose or worn fuel pump lock ring at the tank opening
• Sending unit service where the retaining ring needs replacement
• Fuel pump assembly retention concerns after tank repair
• Seal replacement during fuel tank sender maintenance
• Fitment-specific repair needs on Pontiac Sunrunner, Suzuki Samurai, Suzuki Sidekick, and Chevrolet Tracker models

Installation Notes and Tips

Inspect the tank flange, sending unit, and seal surfaces before installation. Clean the mating area thoroughly so the lock ring seats evenly, and verify the ring engages correctly with the fuel pump assembly. Confirm vehicle fitment by year and model before service, especially on 1989-1996 Pontiac Sunrunner, Suzuki Samurai, Suzuki Sidekick, and Chevrolet Tracker applications.

Quality Assurance

Dorman manufactures replacement hardware for service-focused repairs, and this lock ring is built from durable materials for reliable use in fuel system maintenance.