Dorman 692-266 Fuel Tank Sending Unit

Dorman 692-266 is a fuel tank sending unit built to match the fit and function of the original unit on specified applications. It is designed for direct replacement service on select Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 vans, along with other listed Buick, Cadillac, and Oldsmobile applications.

• Direct-fit fuel tank sending unit for specified vehicles
• Designed to match original fit and function
• Adjustable float level for accurate fuel level reporting
• 90 ohms full / 0 ohms empty resistance range
• Hose barb inlet and outlet attachment types
• Includes tank seal, gasket, lock ring, and strainer
• 3-wire design with black and blue wire colors
• Fuel pump not included

Detailed Product Overview

This Dorman fuel tank sending unit, part number 692-266, is engineered for reliable fuel level signal performance in applications that use a 90-ohm full and 0-ohm empty resistance range. The unit measures 310 in length and uses a 91.3 outside diameter with a 92 tank seal outside diameter, helping it align with the original tank opening and sealing requirements on the listed vehicles. It features two hose barb inlets, one hose barb outlet, no-thread fittings, and an adjustable float level for proper calibration. Dorman 692-266 also cross-references Spectra Premium FG17A and 25002574 for the same application.

Compatible With 1977-1987 Chevrolet G10, G20, G30, 1977-1978 GMC G15, G25, G35, 1979-1987 GMC G1500, G2500, G3500, plus listed Buick Riviera, Cadillac Eldorado and Seville, and Oldsmobile Toronado applications. For shoppers searching for a fuel tank sending unit for 1977-1987 Chevrolet G10 or a replacement fuel level sender for 1979-1987 GMC G2500, this part number 692-266 is built around the original equipment layout.

Common Problems This Part Can Address

• Inaccurate fuel gauge readings
• Fuel level signal loss from a worn sender
• Hard-to-diagnose intermittent gauge movement
• Sealing issues at the tank opening
• Corrosion or wear at the original sending unit assembly

Installation Notes and Tips

Verify tank opening diameter, resistance range, and connector/wiring layout before installation. This unit uses a 3-wire configuration with no connector or terminal count listed, so compare the vehicle harness and sender routing to the original part before removal. The package includes a sending unit, lock ring, and gasket; the fuel pump is not included. Confirm application notes such as manual air conditioning controls, electronic instrument cluster, and 20-gallon tank requirements where listed in the fitment data.

Quality Assurance

Dorman designs this sending unit to match original fit and function and manufactures it from quality materials for dependable service and durability in specified applications.