Delphi FD0031 Electric Fuel Pump - In-Line

Delphi FD0031 Electric Fuel Pump Overview

The Delphi FD0031 is a 12-volt external electric fuel pump for diesel applications with a standard replacement design. Built with Delphi’s OE heritage and supplier experience, it is engineered for frame-mounted, in-line fuel delivery on select Chevrolet and GMC diesel trucks and vans.

Compatible With 1994-2002 Chevrolet and GMC diesel applications, including Chevrolet Express 2500, Express 3500, C2500, C3500, K2500, K3500, Suburban, Tahoe, and GMC Savana, C/K-series, Yukon, and P-series models.

Key Features

• 12-volt electric fuel pump for diesel fuel systems
• External, in-line mounting for frame-mounted applications
• Female threaded inlet and outlet with M16-1.5 thread size
• 2-pin electrical connection with female terminals
• Average flow rating of 32 and system pressure of 7 psi
• Standard replacement part for select Chevrolet and GMC vehicles
• Package includes the electric fuel pump and instruction sheet

Detailed Product Description

Delphi FD0031 is built for diesel fuel delivery in external, frame-mounted configurations. It uses female threaded inlet and outlet ports, a pin-style electrical terminal layout, and a 12-volt operating system to support the fuel supply needs of select Chevrolet Express, GMC Savana, C/K-series, Suburban, Tahoe, Yukon, and P-series applications. Delphi’s OE background is reflected in the design approach, with aftermarket coverage aimed at a broad range of model years and vehicle platforms. This part cross-references Airtex E3309 and Carter P74143 for the same application.

Common Fuel Delivery Issues It May Address

• Hard starting caused by weak diesel fuel delivery
• Low fuel pressure in an external in-line system
• Fuel starvation under load or during acceleration
• Intermittent engine performance from an aging pump
• Poor drivability related to inconsistent fuel flow

Installation Notes and Tips

Fits 1994-2002 Chevrolet Express 2500, In-Line; 1994-2002 Chevrolet Express 3500, In-Line; 1996-2002 GMC Savana 2500, In-Line; 1996-2002 GMC Savana 3500, In-Line; 1994-2000 Chevrolet C2500, In-Line; 1994-2000 Chevrolet C3500, In-Line; 1994-2000 Chevrolet K2500, In-Line; 1994-2000 Chevrolet K3500, In-Line; 1994-2000 GMC C2500, In-Line; 1994-2000 GMC C3500, In-Line; 1994-2000 GMC K2500, In-Line; 1994-2000 GMC K3500, In-Line; 1995-1999 Chevrolet C1500 Suburban, In-Line; 1994-1999 Chevrolet C2500 Suburban, In-Line; 1995-1999 Chevrolet K1500 Suburban, In-Line; 1994-1999 Chevrolet K2500 Suburban, In-Line; 1994-1999 Chevrolet P30, In-Line; 1995-1999 Chevrolet Tahoe, In-Line; 1995-1999 GMC C1500 Suburban, In-Line; 1994-1999 GMC C2500 Suburban, In-Line; 1995-1999 GMC K1500 Suburban, In-Line; 1994-1999 GMC K2500 Suburban, In-Line; 1994-1999 GMC P3500, In-Line; 1994-1998 Chevrolet C1500, In-Line; 1994-1998 Chevrolet K1500, In-Line; 1994-1998 GMC K1500, In-Line; 1994-1997 GMC C1500, In-Line; 1994-1997 GMC Yukon, In-Line; 1995 Chevrolet G30, In-Line; 1995 GMC G2500, In-Line; 1995 GMC G3500, In-Line; 1994 Chevrolet Blazer, In-Line.

Clean the fuel tank before installation to reduce contamination risk and help prevent premature pump failure. Delphi also recommends the FC01 fuel tank cleaning kit for this application. Verify threaded port size, electrical connector style, and frame-mounted in-line routing before installation.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge used by major automakers. That OE-focused background is built into its aftermarket fuel delivery components, including the FD0031 electric fuel pump.