Spectra FG12D Fuel Tank Sending Unit

The Spectra FG12D fuel tank sending unit restores fuel level signal performance for select Chevrolet and GMC trucks and SUVs. It is a direct-fit fuel tank sending unit for 1973-1977 Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, K20 Suburban, 1976-1977 Chevrolet K5 Blazer, and 1976-1977 GMC Jimmy with a 25-gallon tank, 4 outlets, and fuel return.

Key Features

• Fuel tank sending unit for air and fuel delivery service
• Direct replacement for select Chevrolet and GMC applications
• Built for 25-gallon tanks with 4 outlets and fuel return
• OE-style fitment for accurate fuel level reporting
• Cross-references Spectra Premium FG12D for the same application

Detailed Description

Use the Spectra FG12D when the original sender no longer reports fuel level correctly or when the tank sender assembly needs replacement during fuel system service. This part number is used on 1973-1977 Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, and K20 Suburban models, plus 1976-1977 Chevrolet K5 Blazer and 1976-1977 GMC Jimmy applications. Spectra Premium engineering and manufacturing controls are used to meet or exceed original equipment performance expectations for this fuel tank sending unit.

What It Helps Fix

• Inaccurate fuel gauge readings
• Fuel level sender wear from age and mileage
• Intermittent gauge movement caused by sender failure
• Service issues during fuel tank maintenance
• Replacement needs on classic Chevrolet and GMC fuel systems

Installation Notes

• Fits 1973-1977 Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, and K20 Suburban, N/A.
• Fits 1976-1977 Chevrolet K5 Blazer, N/A.
• Fits 1976-1977 GMC Jimmy, N/A.
• Fuel tank must be inspected and cleaned before installation.
• Replace the fuel tank lock ring and seal; failure to do so voids the warranty.

Quality Assurance

Spectra Premium fuel tank sending units are manufactured with engineering, production, and quality control processes aimed at matching or exceeding OE performance. The FG12D is backed by the manufacturer warranty terms noted for this application, including the requirement to replace the lock ring and seal and to install only in a clean, inspected fuel tank.