Hitachi HPP0023 Direct Injection High-Pressure Fuel Pump

The Hitachi HPP0023 Direct Injection High-Pressure Fuel Pump is engineered to deliver the precise fuel volume and pressure that modern direct injection engines demand. As a Tier 1 OE supplier, Hitachi manufactures fuel pumps for original vehicle assembly lines, and the HPP0023 is built to the same performance and durability standards. This is a 100% new unit — not remanufactured — featuring a high-strength aluminum housing that balances lightweight construction with the structural integrity needed to sustain high-pressure fuel delivery over the life of the vehicle.

Designed as a vehicle-specific, mechanically operated gerotor-style pump, the HPP0023 mounts in the front position and is driven by the engine's camshaft. It is compatible with both standard gasoline and ethanol fuel blends, making it versatile across fueling options. The pump replaces multiple OEM part numbers (079 127 025AE, 079 127 025AH, 079 127 025AJ, 079 127 025AK, and 079 127 025T) and ships with applicable O-rings and gaskets included, simplifying the installation process. Manufactured in Germany, the HPP0023 is a direct-fit solution for maintaining optimal fuel delivery in direct injection, supercharged, and turbocharged applications.