Delphi HM10073 Direct Injection High Pressure Fuel Pump

Delphi Direct Injection High Pressure Fuel Pump Overview

The Delphi HM10073 is a mechanical direct injection high pressure fuel pump designed for select Audi models. Engineered for gas fuel systems, this external pump delivers reliable fuel pressure essential for optimal engine performance in vehicles like the Audi A6 Quattro, R8, S4, S5, and TT RS Quattro.

• Compatible with Audi A6 Quattro, R8, S4, S5, TT RS Quattro
• Mechanical pump type for direct injection systems
• Metal housing with silver finish for durability
• Blade terminal type with 2 male terminals
• Female threaded inlet (M12-1.0) and threaded outlet fittings (M14-1.5)
• External mounting, no mounting hardware or gasket included
• Standard replacement grade for reliable performance
• Includes instruction sheet for installation guidance

Technical Details and Construction

The Delphi HM10073 fuel pump features a robust metal housing finished in silver, designed to withstand the demands of high pressure fuel delivery in direct injection gas engines. It includes two male blade terminals for electrical connection, ensuring secure and efficient power transfer. The pump’s inlet uses a female threaded fitting sized M12-1.0, while the outlet has two threaded fittings sized M14-1.5, facilitating proper fuel flow and connection compatibility. This external mechanical pump does not include mounting hardware, gaskets, or a wiring harness, so these components must be sourced separately if needed.

Compatible Vehicles and Applications

This direct injection high pressure fuel pump is specifically compatible with the following Audi models:

• Audi A6 Quattro
• Audi R8
• Audi S4
• Audi S5
• Audi TT RS Quattro

Use the Delphi HM10073 when replacing a failing or worn mechanical fuel pump in these vehicles to maintain proper fuel pressure and engine efficiency.

Common Issues Addressed by This Fuel Pump

• Loss of fuel pressure causing engine performance issues
• Fuel pump failure leading to engine stalling or no-start conditions
• Inconsistent fuel delivery affecting acceleration and power
• Mechanical wear resulting in fuel leaks or reduced pump efficiency
• Electrical connection problems due to damaged terminals

Installation Notes and Tips

Installation of the Delphi HM10073 requires attention to proper fuel line connections and secure electrical terminal attachment. Since mounting hardware and gaskets are not included, ensure you have the correct components before beginning installation. Follow the included instruction sheet carefully to avoid damage to the pump or vehicle fuel system. It is recommended to inspect related fuel system components during replacement to ensure overall system integrity.

Quality Assurance and Warranty

Delphi provides this HM10073 fuel pump as a standard replacement part, manufactured to meet OEM specifications for fit and function. The metal housing and precise terminal design contribute to durability and reliable operation. While specific warranty details may vary, Delphi parts typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or your parts provider for exact warranty terms.