Sparta PN4074 Fuel Tank Sending Unit - Left

Fuel Tank Sending Unit for GM C/K Trucks

The Sparta PN4074 fuel tank sending unit is built for older GM trucks that need accurate fuel level reporting and dependable tank-side service. It is a left-side unit for select Chevrolet and GMC C/K applications, including 1980-1986 Chevrolet C10, C20, C30, K10, K20, and K30, plus 1980-1986 GMC C1500, C2500, C3500, K1500, K2500, and K3500 models.

Sparta, distributed by Delphi, is positioned for higher-mileage and earlier model vehicles where correct fit and consistent performance matter. PN4074 includes the sending unit with float arm and the service pieces needed for installation.

Key Features

• Fuel tank sending unit for gasoline applications
• Left-side fitment for select Chevrolet and GMC trucks
• Pin-style electrical terminal with 1 female terminal
• 1 ohm empty / 95 ohm full resistance range
• Strainer included
• Package contents: fuel tank sending unit w/float arm, seal, grommet, insulating sleeve, and instruction sheet
• Cross-reference: Dorman OE Solutions 692-006

Detailed Description

Sparta PN4074 is a fuel tank sending unit for GM truck fuel systems that require a left-side sender and gasoline fuel compatibility. It is engineered around the resistance values used by the gauge circuit, with 1 ohm at empty and 95 ohms at full, helping the instrument cluster read fuel level correctly. This part cross-references Dorman OE Solutions 692-006 for the same application.

Compatible With 1980-1986 Chevrolet C10, C20, C30, K10, K20, and K30, as well as 1980-1986 GMC C1500, C2500, C3500, K1500, K2500, and K3500, all in the left position. PN4074 is also listed with interchange references including Spectra Premium FG05F and OE numbers 19111383 and 25002010.

What This Part Helps Address

• Inaccurate fuel gauge readings
• Fuel level readings that stay on empty or full
• Intermittent sender signal from worn internal contacts
• Service needs on aging Chevrolet and GMC truck fuel tanks
• Replacement of a damaged float arm or sender assembly

Installation Notes and Tips

Confirm left-side tank location before ordering. Match the electrical connector style, terminal count, and resistance range to the original unit. Inspect the tank opening, seal surface, and grommet area before installation, and replace any worn components that could affect sealing or sender movement. Follow the included instruction sheet during installation.

Quality Assurance

Sparta fuel system parts are distributed by Delphi, an OE full-line fuel supplier with application knowledge for older vehicles. PN4074 is built for fitment-sensitive replacement on higher-mileage GM trucks, with component details selected to match the original sender function.