Delphi HM10046 Direct Injection High Pressure Fuel Pump - Left

Overview of Delphi HM10046 Direct Injection High Pressure Fuel Pump

The Delphi HM10046 is a mechanical direct injection high pressure fuel pump designed for select Audi and Volkswagen models. Engineered for gas fuel systems, this external pump ensures reliable fuel delivery with precision threading and durable metal housing.

• Compatible with Audi A6 Quattro, A8 Quattro, Q7, R8, S5, and Volkswagen Touareg
• Mechanical pump type with external mounting position (left side)
• Metal housing in silver finish for durability and heat resistance
• Threaded inlet (M12-1.5) and dual threaded outlets (M14-1.5) for secure fuel connections
• Blade terminal type with two male terminals for electrical connection
• Standard replacement grade without included mounting hardware or gaskets
• Package includes the fuel pump and instruction sheet for installation guidance

Detailed Product Description

The Delphi HM10046 direct injection high pressure fuel pump is specifically designed for gas-fueled engines in Audi and Volkswagen vehicles such as the A6 Quattro, A8 Quattro, Q7, R8, S5, and Touareg. This mechanical pump features a robust metal housing finished in silver, providing strength and resistance to engine bay conditions. The pump’s inlet and outlet ports are threaded (M12-1.5 inlet and dual M14-1.5 outlets), ensuring a secure and leak-resistant connection to the fuel lines. With two male blade terminals, the electrical connection is straightforward and compatible with factory wiring harnesses, although the harness itself is not included. The pump mounts externally on the left side of the engine compartment, facilitating easier access during replacement.

Common Applications and Issues Addressed

• Restores proper fuel pressure in direct injection systems for Audi and Volkswagen gas engines
• Resolves engine hesitation or stalling caused by fuel delivery problems
• Eliminates fuel pump noise or irregular operation due to worn mechanical components
• Addresses fuel leaks or pressure drops from damaged or failing pumps
• Supports engine performance and efficiency by maintaining consistent fuel flow

Installation Notes and Tips

• Verify compatibility with your specific Audi or Volkswagen model before installation
• Ensure all fuel lines and fittings match the threaded inlet and outlet sizes (M12-1.5 inlet, M14-1.5 outlets)
• Use appropriate tools to avoid damaging the metal housing or threaded connections
• Replace any worn or damaged mounting hardware and seals separately, as these are not included
• Follow the included instruction sheet carefully for proper installation and torque specifications

Quality Assurance and Warranty

The Delphi HM10046 is a standard replacement grade fuel pump manufactured to meet OEM specifications for durability and performance. While mounting hardware and gaskets are not included, the pump’s metal housing and mechanical design ensure reliable operation under normal conditions. Delphi products typically come with a limited warranty covering defects in materials and workmanship; please refer to Delphi’s official warranty policy for detailed terms.