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SpectraPart #: FG91D
Spectra FG91D Fuel Tank Sending Unit
⚙️ 55 vehicles fit this part
Select your vehicle to confirm fitment
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Chevrolet, GMC, Oldsmobile, and Pontiac, GS, GS 455, Skylark, Chevelle, El Camino, Monte Carlo, Sprint, Cutlass, Cutlass Supreme, F85, LeMans, 442, and GTO
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Reliable Fuel Tank Sending Unit for Classic GM Vehicles
The Spectra FG91D fuel tank sending unit is designed to provide accurate fuel level readings for select Buick, Chevrolet, Oldsmobile, and Pontiac models. This component ensures your vehicle's fuel gauge operates correctly, helping you monitor fuel levels with confidence.
- Compatible with Buick Cutlass and Cutlass Supreme models
- Fits Chevrolet El Camino, Monte Carlo, and other classic models
- Designed for Oldsmobile LeMans and Pontiac GTO, Skylark
- Direct replacement for original fuel tank sending units
- Part number FG91D for precise identification and fitment
Product Details and Compatibility
The Spectra FG91D fuel tank sending unit is engineered to meet the specifications of various classic GM vehicles, including Buick Cutlass and Cutlass Supreme, Chevrolet El Camino and Monte Carlo, Oldsmobile LeMans, and Pontiac GTO and Skylark. This unit replaces the original sending unit to maintain accurate fuel level readings, which is critical for vehicle operation and fuel management. The part number FG91D ensures compatibility and ease of ordering for these specific models.
Common Applications and Problem Resolution
- Resolves inaccurate or fluctuating fuel gauge readings
- Fixes fuel gauge stuck on empty or full
- Addresses fuel level sensor failures in classic GM vehicles
- Prevents unexpected fuel shortages due to faulty readings
- Restores proper communication between fuel tank and gauge
Installation Notes and Tips
Installation of the Spectra FG91D fuel tank sending unit requires access to the fuel tank, which may involve removing the rear seat or accessing the tank from underneath the vehicle depending on the model. It is recommended to relieve fuel system pressure and disconnect the battery before installation. Ensure the sending unit is properly seated and sealed to prevent fuel leaks. Calibration of the fuel gauge may be necessary after installation to ensure accurate readings.
Quality Assurance and Warranty Information
Manufactured by Spectra, the FG91D fuel tank sending unit is built to meet OEM standards for fit and function. While specific warranty details are not provided, Spectra products typically undergo quality control testing to ensure durability and reliability in automotive applications. For detailed warranty information, refer to the product documentation or contact the manufacturer directly.
This part fits 55 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1972 | Buick | Skylark | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | |
| 1972 | Buick | Skylark | Custom | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1972 | Buick | Skylark | Custom | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1972 | Buick | Skylark | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | |
| 1972 | Buick | Skylark | Base | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1972 | Buick | Skylark | Base | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1972 | Buick | Skylark | 350 | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe | |
| 1972 | Buick | Skylark | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | |
| 1972 | Buick | Skylark | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | |
| 1972 | Chevrolet | El Camino | 7.4L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | El Camino | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | El Camino | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | El Camino | 5.0L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | El Camino | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | Monte Carlo | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Chevrolet | Monte Carlo | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Oldsmobile | Cutlass | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Oldsmobile | Cutlass Supreme | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Pontiac | LeMans | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Pontiac | LeMans | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Pontiac | LeMans | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1972 | Pontiac | LeMans | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Buick | Skylark | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | ||
| 1971 | Buick | Skylark | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | |
| 1971 | Buick | Skylark | Custom | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1971 | Buick | Skylark | Custom | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1971 | Buick | Skylark | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | |
| 1971 | Buick | Skylark | Base | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1971 | Buick | Skylark | Base | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) |
| 1971 | Buick | Skylark | Sedan | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | |
| 1971 | Buick | Skylark | Coupe | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.) | |
| 1971 | Buick | Skylark | Sedan | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | |
| 1971 | Buick | Skylark | Coupe | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | |
| 1971 | Buick | Skylark | Sedan | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | |
| 1971 | Buick | Skylark | Coupe | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | |
| 1971 | Chevrolet | El Camino | 7.4L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | El Camino | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | El Camino | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | El Camino | 5.0L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | El Camino | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | Monte Carlo | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Chevrolet | Monte Carlo | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Oldsmobile | Cutlass | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Oldsmobile | Cutlass | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Pontiac | GTO | 7.5L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Pontiac | GTO | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Pontiac | LeMans | 6.6L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Pontiac | LeMans | 5.7L | V8 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation | ||
| 1971 | Pontiac | LeMans | 4.1L | L6 | N/A | w/ Fuel Return; 2 Outlets (3/8 in.); Cover Body Type: Sedan; Coupe; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
191796906428837692244E2625ATNKFG91D
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.