Delphi HM10128 Direct Injection High Pressure Fuel Pump

Overview of Delphi HM10128 High Pressure Fuel Pump

The Delphi HM10128 is a direct injection high pressure fuel pump designed specifically for Audi A4 models. Engineered for gas fuel systems, this mechanical pump ensures precise fuel delivery to maintain optimal engine performance.

• Compatible with Audi A4 gas engines
• Mechanical direct injection high pressure fuel pump
• Metal housing with silver finish for durability
• Inlet outside diameter: 0.313 inches with hose inlet type
• Two female threaded outlets (M14-1.5 thread size)
• Includes gasket or seal for secure installation
• Blade terminal type with two male terminals
• External pump design for easier access and maintenance

Detailed Product Description

The Delphi HM10128 direct injection high pressure fuel pump is built with a robust metal housing finished in silver, providing strength and corrosion resistance. It features a 0.313-inch inlet outside diameter with a hose inlet type, allowing for secure fuel line connections. The pump includes two female threaded outlets sized M14-1.5, facilitating reliable fuel flow to the engine. Designed as an external mechanical pump, it operates efficiently within the fuel delivery system of Audi A4 vehicles running on gasoline. The blade terminal type with two male terminals ensures proper electrical connectivity. A gasket or seal is included to maintain a tight, leak-free installation.

Common Applications and Issues Addressed

• Replacement for failing or worn high pressure fuel pumps in Audi A4 gas engines
• Resolves fuel delivery inconsistencies causing engine hesitation or stalling
• Addresses fuel pressure loss impacting engine performance and fuel efficiency
• Fixes leaks or seal failures in the fuel pump assembly
• Supports restoration of proper fuel injection pressure for direct injection systems

Installation Notes and Tips

Installation of the Delphi HM10128 requires removal of the existing external fuel pump. Ensure the gasket or seal included is properly seated to prevent leaks. Since mounting hardware and wiring harness are not included, reuse existing components or source compatible parts separately. Verify correct terminal connections using the blade-type male terminals. Follow manufacturer torque specifications for the M14-1.5 outlet fittings to avoid damage.

Quality Assurance and Warranty

This Delphi direct injection high pressure fuel pump is a standard replacement part manufactured to meet OEM specifications for Audi A4 vehicles. The metal housing and included gasket contribute to long-term reliability. While specific warranty details are not provided, Delphi products typically adhere to industry quality standards to ensure consistent performance and durability.