Spectra FG04B Fuel Tank Sending Unit

The Spectra FG04B fuel tank sending unit is a direct-fit replacement for select Chevrolet S10 Blazer and GMC S15 Jimmy applications. It is built to meet or exceed original equipment performance standards for fuel level sensing and tank serviceability.

Key Features

• Fuel tank sending unit for air and fuel delivery service
• OE-style replacement for accurate fuel level signal output
• Built with Spectra Premium engineering and manufacturing controls
• Compatible with 1983-1984 Chevrolet S10 Blazer, N/A
• Compatible with 1983-1984 GMC S15 Jimmy, N/A

Detailed Description

Use the Spectra FG04B when replacing a worn or inaccurate fuel tank sending unit on 1983-1984 Chevrolet S10 Blazer and 1983-1984 GMC S15 Jimmy models with a 13-gallon tank. This unit is engineered as an OE-style replacement to restore proper fuel level reporting from the tank to the gauge system. This part number, FG04B, is also referenced in fuel system catalogs for the same application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Inaccurate or erratic fuel gauge readings
• Fuel level sender wear from age and tank exposure
• Intermittent gauge movement caused by sender degradation
• Fuel tank service issues on 1983-1984 Chevrolet S10 Blazer and GMC S15 Jimmy

Installation Notes

Fits 1983-1984 Chevrolet S10 Blazer, N/A, and 1983-1984 GMC S15 Jimmy, N/A. The fuel tank must be inspected and cleaned before installation. Replace the fuel tank lock ring and seal during service; failure to do so voids the warranty. Verify the tank is a 13-gallon tank before ordering. Part number FG04B should be matched to the vehicle application before installation.

Quality Assurance

Spectra Premium states that its engineering, manufacturing technology, and quality control processes are used to ensure these fuel tank sending units meet or exceed the performance of the original equipment they replace.