Delphi HM10023 Direct Injection High Pressure Fuel Pump

Delphi Direct Injection High Pressure Fuel Pump Overview

The Delphi HM10023 is a mechanical direct injection high pressure fuel pump designed for select Audi models. Engineered with a durable metal housing and precise inlet and outlet fittings, this fuel pump supports efficient fuel delivery for gas engines in vehicles such as the Audi A4, A5, A6, Q5, and TT Quattro.

• Compatible with Audi A4, A4 allroad, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, allroad, Q5, and TT Quattro
• Mechanical pump type with barbed inlet and threaded outlet (M14-1.5 thread size)
• Metal housing in silver color for durability and heat resistance
• Two male blade terminals for electrical connection
• External pump design with no mounting hardware or gasket included
• Standard replacement grade for reliable performance
• Includes instruction sheet for installation guidance

Detailed Product Description

The Delphi HM10023 direct injection high pressure fuel pump is specifically designed for gas-fueled Audi vehicles requiring precise fuel delivery under high pressure conditions. Its mechanical operation ensures consistent fuel flow, critical for the direct injection systems found in models like the Audi A4 Quattro and A6 Quattro. The pump features a 0.313 inch outside diameter barbed inlet and dual threaded outlets sized M14-1.5, allowing secure fuel line connections. The metal housing provides structural integrity and heat dissipation, while the silver finish aids in corrosion resistance. Electrical connections are made via two male blade terminals, supporting reliable power delivery without the need for an included wiring harness. This external pump does not come with mounting hardware or gaskets, so these components should be sourced separately during installation.

Common Applications and Issues Addressed

• Restores proper fuel pressure in direct injection systems for Audi A4 and A5 models
• Resolves fuel delivery inconsistencies causing engine hesitation or stalling
• Replaces worn or damaged fuel pumps in Audi Q5 and TT Quattro vehicles
• Addresses fuel leaks or pressure drops due to faulty pump components
• Improves engine performance and fuel efficiency by maintaining correct fuel flow

Installation Notes and Tips

• Compatible with external fuel pump mounting locations on specified Audi models
• Ensure all fuel lines match the 0.313 inch barbed inlet and M14-1.5 threaded outlets
• Verify electrical connections to the two male blade terminals before final assembly
• Mounting hardware and gaskets are not included; obtain OEM or aftermarket parts as needed
• Follow the included instruction sheet carefully to avoid installation errors

Quality Assurance and Warranty

The Delphi HM10023 is a standard replacement grade fuel pump manufactured to meet OEM specifications for fit and function. Delphi products undergo rigorous quality control to ensure durability and reliable operation in demanding automotive environments. While specific warranty details may vary, Delphi typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.