Delphi HFP922 Fuel Lift Pump

Delphi HFP922 Fuel Lift Pump Overview

The Delphi HFP922 is a 12-volt electric diesel fuel lift pump built as a standard replacement for select Chevrolet and GMC applications. It is engineered for 8 psi system pressure and an average flow rating of 28, with OE-based design knowledge drawn from Delphi’s long history supplying automakers.

Fits 1999-2002 Chevrolet Express 2500, N/A; Fits 1999-2002 Chevrolet Express 3500, N/A; Fits 1999-2002 GMC Savana 2500, N/A; Fits 1999-2002 GMC Savana 3500, N/A; Fits 1999-2000 Chevrolet C2500, N/A; Fits 1999-2000 Chevrolet C3500, N/A; Fits 1999-2000 Chevrolet K2500, N/A; Fits 1999-2000 Chevrolet K3500, N/A; Fits 1999-2000 GMC C2500, Fuel Lift Pump - Frame Mounted; Fits 1999-2000 GMC C3500, Fuel Lift Pump - Frame Mounted; Fits 1999-2000 GMC K2500, Fuel Lift Pump - Frame Mounted; Fits 1999-2000 GMC K3500, Fuel Lift Pump - Frame Mounted; Fits 1999 Chevrolet C1500 Suburban, N/A; Fits 1999 Chevrolet C2500 Suburban, N/A; Fits 1999 Chevrolet K1500 Suburban, N/A; Fits 1999 Chevrolet K2500 Suburban, N/A; Fits 1999 Chevrolet P30, N/A; Fits 1999 Chevrolet Tahoe, N/A; Fits 1999 GMC C1500 Suburban, Fuel Lift Pump - Frame Mounted; Fits 1999 GMC C2500 Suburban, Fuel Lift Pump - Frame Mounted; Fits 1999 GMC K1500 Suburban, Fuel Lift Pump - Frame Mounted; Fits 1999 GMC K2500 Suburban, Fuel Lift Pump - Frame Mounted; Fits 1999 GMC P3500, Fuel Lift Pump - Frame Mounted.

Key Features

• 12.0-volt electric fuel lift pump for diesel fuel systems
• Standard replacement design for service and repair work
• 8 psi system pressure and 28 average flow rating
• Pin-style, 2-terminal female electrical connection
• Flare inlet and outlet with M16-1.5 thread size
• Package contents include the fuel lift pump and instruction sheet
• Delphi OE heritage and aftermarket engineering experience

Detailed Product Description

The Delphi HFP922 fuel lift pump is built for diesel applications that require consistent low-pressure fuel delivery. With a 12-volt electric pump design, 10-amp average current draw, and flare-style M16-1.5 inlet and outlet fittings, it is specified for direct replacement use in a range of Chevrolet Express, GMC Savana, Chevrolet C/K trucks, Suburban models, Tahoe, P30, and GMC P3500 applications. Delphi’s OE background is reflected in the component design and application coverage.

This part cross-references Airtex Fuel Pumps E3540 and Carter P74222 for the same application. The Delphi HFP922 is also associated with replacement references such as 15018546 and 15754298.

Common Issues This Part May Address

• Low diesel fuel pressure at the lift pump circuit
• Hard starting caused by weak fuel delivery
• Fuel starvation under load or during acceleration
• Intermittent pump operation from electrical wear
• Reduced fuel flow in frame-mounted diesel lift pump systems

Installation Notes and Tips

Confirm the vehicle’s fuel system uses a 12-volt diesel lift pump with pin terminals, female terminal ends, and M16-1.5 flare fittings before installation. Verify the frame-mounted application notes where listed, and compare the original pump’s pressure and flow specifications to the Delphi HFP922. The package includes an instruction sheet; gasket or seal and strainer are not included.

Quality Assurance

Delphi builds aftermarket parts using OE experience and application knowledge developed through decades of supplying major automakers. The HFP922 is a standard replacement fuel lift pump designed around published electrical and fuel-system specifications for the listed Chevrolet and GMC diesel applications.