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Dorman 579-027 Fuel Tank Sending Unit Lock Ring
| Brand | Dorman 579-027 |
|---|---|
| Material | Steel rubber |
| Inside Diameter | 3.125 |
| Outside Diameter | 3.58 |
| Mounting Hardware Included | No |
| Gasket Or Seal Included | Yes |
| Lock Ring Diameter (In) | 3.58 in |
| Package Contents | 1 fuel pump lock ring |
| Fits | Chevrolet and Pontiac · 22 vehicles |
OE-style replacement. Secures the fuel pump assembly during fuel tank sender service.
Steel and rubber. Durable construction for reliable retention at the tank opening.
Seal included. Helps complete the fuel pump assembly interface during service.
Cross-references Spectra Premium LO27 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Fuel Tank Sending Unit Lock Ring
This Dorman fuel tank sending unit lock ring secures the fuel pump assembly to the tank opening during service. It is built from steel and rubber for dependable retention and includes a gasket or seal for the application.
Key Features
- Direct replacement fuel tank sending unit lock ring for service work
- Steel and rubber construction for secure retention
- Gasket or seal included for the fuel pump assembly interface
- 3.58 in. lock ring diameter with 3.125 in. inside diameter
- Recommended whenever the sending unit is serviced
Detailed Description
Part number 579-027 is a fuel tank sending unit lock ring used to retain the fuel pump assembly at the tank opening. Dorman builds this replacement from durable materials to provide reliable service, and the included seal helps complete the service interface. This part cross-references Spectra Premium LO27 for the same application.
Compatible with Chevrolet Camaro and Pontiac Firebird applications, this lock ring matches the specified 3.125 in. inside diameter used on the listed vehicles. It is a practical replacement for service on the fuel tank sending unit in 1982-1992 Chevrolet Camaro and 1982-1992 Pontiac Firebird models. Part number 579-027 is a direct-fit service component for these applications.
What It Is Used For
- Replacing a worn or damaged fuel pump lock ring
- Restoring secure retention of the sending unit assembly
- Addressing seal-related service needs at the tank opening
- Servicing fuel tank components during pump or sender replacement
Installation Notes and Tips
Verify the inside diameter and lock ring diameter before installation. Confirm the application uses a 3.125 in. I.D. lock ring and inspect the sealing surface before reassembly. Follow the vehicle service procedure for fuel tank sender removal and installation.
Quality Assurance
Dorman recommends replacing the lock ring whenever the sending unit is serviced. The steel and rubber construction is intended for reliable service in fuel system applications.
| Year | Make | Model | Notes |
|---|---|---|---|
| 1992 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1992 | Pontiac | Firebird | 3.125 In. I.D. |
| 1991 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1991 | Pontiac | Firebird | 3.125 In. I.D. |
| 1990 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1990 | Pontiac | Firebird | 3.125 In. I.D. |
| 1989 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1989 | Pontiac | Firebird | 3.125 In. I.D. |
| 1988 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1988 | Pontiac | Firebird | 3.125 In. I.D. |
| 1987 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1987 | Pontiac | Firebird | 3.125 In. I.D. |
| 1986 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1986 | Pontiac | Firebird | 3.125 In. I.D. |
| 1985 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1985 | Pontiac | Firebird | 3.125 In. I.D. |
| 1984 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1984 | Pontiac | Firebird | 3.125 In. I.D. |
| 1983 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1983 | Pontiac | Firebird | 3.125 In. I.D. |
| 1982 | Chevrolet | Camaro | 3.125 In. I.D. |
| 1982 | Pontiac | Firebird | 3.125 In. I.D. |
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