Spectra FG03B Fuel Tank Sending Unit

The Spectra FG03B fuel tank sending unit is a direct-fit replacement for select Chevrolet, GMC, and Oldsmobile applications. It is built to meet or exceed original equipment performance standards for fuel level sensing and tank integration.

Key Features

• Fuel tank sending unit for air and fuel delivery systems
• OE-style replacement for accurate fuel level signal output
• Manufactured with engineering and quality control focused on original equipment performance
• Cross-reference part number: TNKFG03B
• Part number FG03B for application lookup and ordering

Vehicle Fitment

• Fits 1985-1991 Chevrolet S10 Blazer, N/A, 20 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
• Fits 1985-1991 GMC S15 Jimmy, N/A, 20 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
• Fits 1991 Oldsmobile Bravada, N/A, 20 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation

What It Helps Address

• Inaccurate fuel gauge readings
• Intermittent or unstable fuel level indication
• Sending unit wear from age and tank contamination
• Replacement needs during fuel tank service on a Chevrolet S10 Blazer or GMC S15 Jimmy
• Replacement needs on a 1991 Oldsmobile Bravada with a 20-gallon tank

Installation Notes

Inspect and clean the fuel tank before installation. Replace the fuel tank lock ring and seal during service; failure to do so voids warranty coverage. Verify the tank capacity and application details before installing FG03B.

Quality Assurance

Spectra Premium fuel tank sending units are engineered and quality-controlled to meet or exceed the performance of the original equipment they replace. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.