Delphi HFP909 Fuel Lift Pump

Reliable Diesel Fuel Lift Pump for Chevrolet and GMC Vehicles

The Delphi HFP909 fuel lift pump is designed for diesel-powered Chevrolet and GMC trucks and SUVs, including models like the Blazer, C1500, and Suburban series. This mechanical external pump ensures consistent fuel delivery with a maximum pressure of 9 psi, supporting optimal engine performance.

• Compatible with Chevrolet and GMC diesel models such as Blazer, C1500, Jimmy, and Suburban variants
• Mechanical fuel lift pump with a maximum pressure rating of 9 psi and system pressure of 7.5 psi
• External pump design with barbed inlet (0.375 thread size) and threaded outlet (5/8-18 unf)
• Includes gasket for secure installation; strainer not included
• Average flow rating of 30 gallons per hour for steady fuel supply

Technical Details and Features

The Delphi HFP909 is a mechanical fuel lift pump engineered for diesel fuel systems requiring an external pump. It features a barbed inlet fitting with a 0.375 thread size and a threaded outlet fitting sized 5/8-18 unf, facilitating straightforward connection to existing fuel lines. The pump operates at a maximum pressure of 9 psi, with a system pressure of 7.5 psi, delivering an average flow rate of 30 gallons per hour. This standard replacement grade pump comes with a gasket and an instruction sheet to assist with installation. Note that a strainer is not included with this unit.

Applications and Problem Resolution

This fuel lift pump is suitable for diesel-powered Chevrolet and GMC vehicles, including the Blazer, C1500, G20, G30, Jimmy, K1500, P30, P3500, and various Suburban models (R1500, R2500, R3500, V1500, V2500, V3500). It addresses common fuel delivery issues such as:

• Inconsistent fuel pressure causing engine hesitation or stalling
• Fuel pump failure leading to no-start conditions
• Reduced fuel flow affecting engine performance and efficiency
• Leaks or damage to the existing fuel lift pump assembly

Installation Notes and Tips

Installation of the Delphi HFP909 requires removal of the existing external fuel lift pump. Ensure the fuel system is depressurized before beginning work. The included gasket must be properly seated to prevent leaks. The barbed inlet and threaded outlet fittings should be securely connected to the fuel lines, matching the specified thread sizes (0.375 inlet, 5/8-18 unf outlet). Follow the provided instruction sheet carefully to maintain system integrity and safety.

Quality Assurance and Warranty

Delphi fuel pumps are manufactured to meet OEM standards for durability and performance. The HFP909 is a standard replacement part designed to restore proper fuel delivery in compatible diesel vehicles. While specific warranty details may vary, Delphi products typically include coverage against manufacturing defects. Refer to the product documentation or supplier for exact warranty terms.