Delphi FG1631 Fuel Pump Module Assembly

Delphi FG1631 Fuel Pump Module Assembly

The Delphi FG1631 fuel pump module assembly is a standard replacement for select 2011-2012 Kia Optima models. Built for in-tank gasoline applications, it combines the pump, fuel level sender, regulator, strainer, and seal components needed for a direct service replacement.

Delphi draws on OE engineering experience and supplier knowledge used by major automakers, bringing factory-style fit and function to aftermarket fuel system service. This FG1631 assembly is built for 12-volt operation with a quick-connect outlet and blade terminals for straightforward integration.

Key Features

• Fuel pump module assembly for in-tank gasoline applications
• Fits 2011-2012 Kia Optima, N/A
• 12.0-volt electric pump with 95.0 maximum pressure
• Includes fuel level sender assembly, regulator, strainer, and gasket/seal
• Quick-connect outlet with 1 outlet and 4 male blade terminals
• Standard replacement design for OE-style service
• Average flow rating of 55 and average current draw of 10

Detailed Description

Delphi FG1631 is a fuel pump module assembly engineered for gasoline vehicles that use an in-tank pump layout. It is listed for 2011-2012 Kia Optima applications and includes the fuel level sender assembly, helping restore both fuel delivery and tank level reporting in one service part. The module also includes a regulator, internal strainer, and gasket or seal for a complete replacement-focused repair.

This part cross-references Airtex E8818 for the same application. The FG1631 uses a quick-connect outlet, blade-style male terminals, and a 12-volt electric pump configuration. With a system pressure rating of 65 psi and maximum pressure of 95.0, it is built to meet the demands of the vehicle’s fuel delivery system while maintaining OE-style service characteristics. Search terms such as Kia Optima fuel pump module assembly, 2011 Kia Optima fuel pump replacement, and 2012 Kia Optima in-tank fuel pump module all point to this application.

Common Problems It Can Address

• Hard starting caused by weak or failing fuel delivery
• Engine stalling from inconsistent fuel pressure
• Incorrect fuel gauge readings from a worn sender assembly
• Fuel starvation under load from a deteriorated pump module
• Fuel system service needs after tank contamination or internal wear

Installation Notes and Tips

Before installation, clean the fuel tank thoroughly to help prevent future seal problems, as noted for this application. Verify connector style, outlet type, and sender resistance values before installation. Because this is an in-tank module, proper sealing and tank cleanliness are important for reliable operation after service.

Quality Assurance

Delphi builds this replacement part using OE heritage and application knowledge developed through long-term supplier experience with major automakers. The FG1631 is intended as a standard replacement fuel pump module assembly for select Kia Optima models, with factory-style component integration and fuel system specifications aligned to the application.