Spectra FG107B Fuel Tank Sending Unit

The Spectra FG107B fuel tank sending unit is an OE-style replacement for select GM A-body applications from 1973-1977. It is built to meet or exceed original equipment performance for accurate fuel level reporting and dependable fuel system operation.

• Fuel tank sending unit for air and fuel delivery applications
• OE-style replacement for select Buick, Chevrolet, Oldsmobile, and Pontiac models
• Fits vehicles with AC where noted in the fitment data
• Configured for 3 outlets with 3/8 in. connections on listed applications
• Cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application

Detailed Fitment and Function

Compatible with 1973-1977 Buick Century, 1973-1977 Buick Regal, 1973-1977 Chevrolet Malibu, 1973-1977 Chevrolet Monte Carlo, 1973-1977 Oldsmobile Cutlass, 1975-1977 Oldsmobile Cutlass Salon, 1977 Pontiac Grand LeMans, 1975-1977 Pontiac Grand LeMans, 1976-1977 Pontiac Grand Prix, 1973-1977 Pontiac LeMans, and 1973-1975 Pontiac Grand Am. The FG107B is a direct-fit fuel tank sending unit for these classic GM platforms, helping restore proper fuel gauge operation and fuel pickup performance. Search terms such as 1973-1977 Buick Century fuel tank sending unit, 1973-1977 Chevrolet Malibu fuel sender, and 1976-1977 Pontiac Grand Prix fuel sending unit all point to this application.

Common Issues It Can Address

• Inaccurate or erratic fuel gauge readings
• Fuel level sender wear from age and corrosion
• Poor fuel pickup from a failing tank sender assembly
• Hard-to-diagnose fuel system issues on classic GM vehicles

Installation Notes

Before installation, inspect the fuel tank and clean it thoroughly. Replace the fuel tank lock ring and seal; failure to do so voids the warranty on listed applications. Verify the tank configuration, outlet count, and 3/8 in. outlet sizing against the vehicle before installation.

Quality Assurance

Spectra Premium fuel tank sending units are engineered and manufactured with quality control processes intended to match or exceed original equipment performance. This part is covered by the warranty note in the fitment data when the required lock ring, seal, and tank-cleanliness conditions are met.