Delphi FG1663 Fuel Pump Module Assembly

Delphi FG1663 Fuel Pump Module Assembly

The Delphi FG1663 fuel pump module assembly is a standard replacement for diesel applications that require an in-tank electric pump with integrated fuel level sender. Built from Delphi’s OE heritage and application knowledge, it supports consistent fuel delivery for Ram 3500 diesel trucks across the 2011-2021 model years.

For Ram 3500 owners searching for a diesel fuel pump module assembly, in-tank fuel pump replacement, or fuel pump module with sender, this part number FG1663 provides the core components needed for a direct service repair.

Key Features

• In-tank electric fuel pump module assembly for diesel fuel systems
• 12.0-volt operation with a maximum pressure rating of 94.0
• Quick-connect outlet design with 3 outlets and 0.375 in. outlet outside diameter
• Fuel level sender assembly included for accurate tank level reporting
• Strainer and gasket/seal included for service replacement
• Standard replacement grade for Ram 3500 diesel applications
• Blade terminals, male terminal gender, 4 terminal quantity
• Average flow rating of 80 and average current draw of 10

Product Details

Delphi FG1663 is an in-tank fuel pump module assembly engineered for diesel fuel delivery in Ram 3500 trucks. It includes the pump module, float arm, seal, and instruction sheet, along with an external strainer and fuel level sender assembly. The unit uses a quick-connect outlet configuration and blade-style terminals, making it a practical OE-style replacement for service work on the fuel system. Delphi’s OE background is reflected in the design approach, with coverage aimed at maintaining proper fuel pressure and sender function in the tank.

This part cross-references EFG1663 and RL560227AB for the same application. Delphi FG1663 is listed for 2011-2021 Ram 3500 models with a Midship Tank, and the fitment note recommends cleaning the fuel tank before installation to reduce contamination risk and premature failure.

Common Repair Uses

• Restores fuel delivery when the original in-tank pump is worn or failing
• Addresses hard-start or no-start conditions caused by low fuel pressure
• Corrects inaccurate fuel gauge readings from a faulty sender assembly
• Helps resolve engine hesitation, stalling, or fuel starvation under load
• Replaces a noisy or inconsistent diesel fuel pump module

Installation Notes

Fits 2011-2021 Ram 3500, N/A. Confirm the vehicle has a Midship Tank before ordering and verify connector, outlet, and pressure requirements against the original unit. Delphi recommends cleaning the fuel tank before installing a new pump module; using a fuel tank cleaning kit such as FC01 helps reduce contamination that can shorten pump life. Always inspect the tank, lines, and electrical connections before installation.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. FG1663 is built as a standard replacement fuel pump module assembly for diesel applications, with OE-informed design and application coverage for Ram 3500 trucks.