Delphi FG2681 Fuel Pump Module Assembly

The Delphi FG2681 fuel pump module assembly is a specific-fit, in-tank diesel fuel delivery unit built for 2017-2019 Chevrolet Silverado 2500 HD and 2017-2019 GMC Sierra 2500 HD applications. It includes the fuel sending unit, fuel filter, strainer, gasket/seal, and float arm for a complete service replacement.

Delphi has supplied fuel system components to global vehicle manufacturers for decades, and this FG2681 module reflects that OE-focused engineering approach for diesel fuel management.

Key Features

• Specific-fit fuel pump module assembly for diesel applications
• In-tank electric turbine pump design
• 12-volt operation with 94 psi maximum pressure and 58 psi minimum pressure
• Average flow rating of 42 and average current draw of 9
• Fuel sending unit included for level signal replacement
• Fuel filter, internal strainer, and gasket/seal included
• Plastic housing with 1 female connector, 6 male terminals, and blade terminals
• Quick-connect outlet with 4 outlets and 0.375 in. outside diameter

Detailed Description

Delphi FG2681 is a premium fuel pump module assembly engineered for diesel fuel delivery in Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD trucks. It is an in-tank, electric turbine-style module with a quick-connect outlet, internal strainer, and integrated fuel sending unit to support fuel delivery and tank level reporting in one assembly. The package contents include the fuel pump module assembly with float arm, seal, and instruction sheet. Delphi FG2681 is also a direct-reference replacement for applications that call for part numbers 84089926, 84212954, 84212955, 84462345, or 86801554.

Fits 2017-2019 Chevrolet Silverado 2500 HD, N/A. Fits 2017-2019 GMC Sierra 2500 HD, N/A. This part number, FG2681, is commonly searched for diesel fuel pump module replacement on these heavy-duty trucks.

Common Problems This Part Can Address

• Hard starting caused by weak or inconsistent fuel delivery
• Fuel gauge inaccuracies from a worn sending unit
• Low fuel pressure or pressure drop under load
• Engine hesitation, stalling, or loss of power from pump wear
• Contamination issues related to a failing internal strainer or fuel filter

Installation Notes and Tips

Confirm the vehicle’s diesel fuel system requirements and connector style before installation. Replace the tank seal during service, inspect the fuel lines and electrical connector for damage, and verify pressure and fuel level operation after installation. Because mounting hardware and lock ring are not included, reuse or source the required service parts as needed.

Quality Assurance

Delphi is a Tier 1 supplier with long-standing OE fuel system experience and extensive fuel technology patents. FG2681 is built as a premium replacement module for diesel truck fuel management, with OE-oriented design and application-specific fitment for Silverado 2500 HD and Sierra 2500 HD models.