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Will it fit your vehicle?
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Will it fit your vehicle?
Free return shipping if it doesn't fit.
Spectra FG84B Fuel Tank Sending Unit
The Spectra FG84B fuel tank sending unit is a direct-fit replacement for select 1955-1957 Chevrolet Bel Air applications. It is built to match original equipment performance expectations for fuel level sensing and tank integration in classic Chevrolet fuel systems.
- Fuel tank sending unit for select Chevrolet Bel Air models
- 3/8 in. outlet noted for the listed applications
- OE-style replacement for fuel level signal and tank pickup function
- Cross-references 692209 and TNKFG84B for the same application
- Part number FG84B for ordering and catalog lookup
Application Details
Compatible With 1955-1957 Chevrolet Bel Air, N/A. Listed notes specify a 3/8 in. outlet, and some applications require the fuel tank to be inspected, cleaned, and fitted with a new lock ring and seal before warranty coverage remains valid. This part number, FG84B, is intended for classic Chevrolet Bel Air fuel system service where accurate tank sending performance is needed.
What This Part Helps Address
- Inaccurate fuel gauge readings
- Intermittent or unstable fuel level signal
- Fuel pickup issues related to a worn sending unit
- Restoration or repair of original-style fuel tank hardware
Installation Notes
Before installation, inspect and clean the fuel tank as directed in the fitment notes. Replace the fuel tank lock ring and seal where required; failure to do so will void warranty coverage for the listed applications. Verify the 3/8 in. outlet specification and confirm the vehicle matches the 1955-1957 Chevrolet Bel Air fitment before installation.
Quality Assurance
Spectra Premium fuel tank sending units are engineered and manufactured with quality control processes intended to meet or exceed original equipment performance for the parts they replace. FG84B is built for dependable fit and function in the specified Chevrolet Bel Air applications.
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1957 | Chevrolet | Bel Air | Sedan | 4.6L | V8 | N/A | 3/8 in. Outlet; Fuel Tank Must Be Inspected, Cleaned, and Lock Ring and Seal Replaced for Warranty Validity. |
| 1957 | Chevrolet | Bel Air | Sedan | 4.3L | V8 | N/A | 3/8 in. Outlet; Fuel Tank Must Be Inspected, Cleaned, and Lock Ring and Seal Replaced for Warranty Validity. |
| 1957 | Chevrolet | Bel Air | Sedan | 3.8L | L6 | N/A | 3/8 in. Outlet; Fuel Tank Must Be Inspected, Cleaned, and Lock Ring and Seal Replaced for Warranty Validity. |
| 1957 | Chevrolet | Bel Air | — | 4.6L | V8 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
| 1957 | Chevrolet | Bel Air | — | 4.3L | V8 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
| 1957 | Chevrolet | Bel Air | — | 3.9L | L6 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
| 1956 | Chevrolet | Bel Air | Sedan | 4.3L | V8 | N/A | 3/8 in. Outlet; Fuel Tank Must Be Inspected, Cleaned, and Lock Ring and Seal Replaced for Warranty Validity. |
| 1956 | Chevrolet | Bel Air | — | 4.3L | V8 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
| 1956 | Chevrolet | Bel Air | — | 3.9L | L6 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
| 1955 | Chevrolet | Bel Air | Sedan | 4.3L | V8 | N/A | 3/8 in. Outlet; Fuel Tank Must Be Inspected, Cleaned, and Lock Ring and Seal Replaced for Warranty Validity. |
| 1955 | Chevrolet | Bel Air | — | 4.3L | V8 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
| 1955 | Chevrolet | Bel Air | — | 3.9L | L6 | N/A | 3/8 in. Outlet; Cover Body Type: Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
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