Dorman 579-021 Fuel Tank Sending Unit Lock Ring
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$29.45
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This fuel tank sending unit lock ring is designed to help restore the connection between the fuel pump, module and/or sending unit and the fuel tank on specified vehicles. It is engineered to match the performance of the original equipment lock ring when the factory ring has failed or is damaged. Manufactured to precise specifications for specified vehicles, it is made with durable materials for reliable performance and long life.
- Direct replacement - this fuel tank sending unit lock ring is designed to help restore the connection between the fuel pump, module and/or sending unit and the fuel tank on specified vehicles
- Ideal solution - engineered to match the performance of the original equipment lock ring when the factory ring has failed or is damaged
- Durable construction - designed and manufactured to strict specifications for reliable performance
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 1974 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1973 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1972 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1971 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1970 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1969 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1968 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1967 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1966 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1965 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1964 | Chevrolet | Corvette | 3.125 In. I.D. | ||
| 1963 | Chevrolet | Corvette | 3.125 In. I.D. |
Product Specifications
| Gasket Or Seal Included: | Yes |
|---|---|
| Inside Diameter: | 3.125 in |
| Material: | Fiber |
| Mounting Hardware Included: | Yes |
| Outside Diameter: | 4 in |
| Package Contents: | 1 Fuel Pump Lock Ring |
| Package Quantity: | 1 |
| Packaging Type: | Box |