Hitachi HPP0004 Direct Injection High Pressure Fuel Pump

Overview of Hitachi Direct Injection High Pressure Fuel Pump

The Hitachi HPP0004 is a mechanical direct injection high pressure fuel pump designed for select Audi and Volkswagen models. Engineered to meet OEM specifications, this fuel pump ensures reliable fuel delivery for vehicles equipped with direct injection systems.

• Mechanical direct injection high pressure fuel pump
• Compatible with Audi A3, A4, A4 Quattro, TT, TT Quattro, TTS Quattro
• Compatible with Volkswagen Golf R, GTI, Jetta, Passat, Eos
• No fuel sending unit, gasket, or tank seal included
• Manufactured by Hitachi for quality and durability

Product Details and Specifications

The Hitachi HPP0004 is a mechanical fuel pump specifically designed for direct injection fuel systems in various Audi and Volkswagen models. This pump does not include a fuel sending unit, gasket, or tank seal, so these components must be sourced separately if needed. The mechanical design ensures consistent high pressure fuel delivery required for optimal engine performance in vehicles such as the Audi A4 Quattro and Volkswagen Golf R. Manufactured by Hitachi, this pump adheres to strict quality standards to maintain fuel system integrity and engine efficiency.

Compatible Vehicles and Applications

This direct injection high pressure fuel pump is compatible with the following makes and models:

• Audi: A3, A4, A4 Quattro, TT, TT Quattro, TTS Quattro
• Volkswagen: Golf R, GTI, Jetta, Passat, Eos

It is designed to replace the original mechanical high pressure fuel pump in these vehicles, ensuring proper fuel delivery for direct injection engines.

Common Issues Addressed by HPP0004 Fuel Pump

• Inconsistent fuel pressure causing engine hesitation or misfires
• Reduced engine performance due to fuel delivery problems
• Fuel pump failure leading to engine stalling or no-start conditions
• Fuel system leaks from worn or damaged pumps (note: gasket and seals not included)
• Direct injection system malfunctions related to fuel pressure irregularities

Installation Notes and Tips

When installing the Hitachi HPP0004 fuel pump, ensure the fuel system is depressurized before removal. Since this pump does not include a gasket or tank seal, inspect and replace these components as necessary to prevent leaks. Proper torque specifications should be followed to avoid damage to the pump or mounting surfaces. It is recommended to verify compatibility with your specific Audi or Volkswagen model year prior to installation.

Quality Assurance and Warranty

Manufactured by Hitachi, the HPP0004 fuel pump meets OEM quality standards for durability and performance. While specific warranty details are not provided here, Hitachi products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.