Spectra FG12H Fuel Tank Sending Unit

The Spectra FG12H fuel tank sending unit is a direct-fit replacement for select Chevrolet and GMC trucks and SUVs with rear fuel tank applications. It is built to match original equipment performance expectations for fuel level reporting and tank interface on the listed vehicles.

Key Features

• Fuel tank sending unit for air and fuel delivery service
• OE-style replacement for select 1978-1982 Chevrolet K5 Blazer and GMC Jimmy applications
• Also fits select 1978-1981 Chevrolet Suburban and GMC Suburban models
• Configured for 31-gallon and select 40-gallon tank applications as listed
• For vehicles without fuel return and with 3 outlets, where specified
• Part number FG12H for catalog and interchange reference

Detailed Description

Spectra Premium fuel tank sending units are engineered and manufactured with quality control processes intended to meet or exceed the performance of the original equipment they replace. The FG12H is used to restore accurate fuel level signal transfer from the tank to the gauge on compatible Chevrolet K5 Blazer, GMC Jimmy, and select Chevrolet and GMC Suburban applications. This part number FG12H also cross-references 692140 for the same application.

What This Part Helps Address

• Inaccurate or erratic fuel gauge readings
• Fuel level signal loss from a worn sending unit
• Intermittent gauge movement caused by internal sender wear
• Replacement needs during fuel tank service on listed Chevrolet and GMC models
• Restoration of proper tank-to-gauge communication after sender failure

Installation Notes and Tips

• Fits 1978-1982 Chevrolet K5 Blazer, N/A
• Fits 1978-1982 GMC Jimmy, N/A
• Fits 1978-1981 Chevrolet C10 Suburban, N/A
• Fits 1978-1981 Chevrolet C20 Suburban, N/A
• Fits 1978-1981 Chevrolet K10 Suburban, N/A
• Fits 1978-1981 Chevrolet K20 Suburban, N/A
• Fits 1979-1981 GMC C1500 Suburban, N/A
• Fits 1979-1981 GMC C2500 Suburban, N/A
• Fits 1979-1981 GMC K1500 Suburban, N/A
• Fits 1979-1981 GMC K2500 Suburban, N/A
• Vehicle notes specify 31-gallon or 31/40-gallon tank applications, no fuel return, and 3 outlets where listed
• Fuel tank must be inspected and cleaned before installation
• Replacing the fuel tank lock ring and seal is required to keep the warranty valid

Quality Assurance

Spectra Premium states that its fuel tank sending units are produced with engineering, manufacturing technology, and quality control intended to meet or exceed original equipment performance for the listed applications. Follow the installation notes carefully to maintain warranty coverage.