Hitachi HPP0026 Direct Injection High Pressure Fuel Pump

Overview of Hitachi Direct Injection High Pressure Fuel Pump

The Hitachi HPP0026 is a mechanical direct injection high pressure fuel pump designed for select Nissan and INFINITI vehicles. Engineered to meet OEM specifications, this fuel pump supports efficient fuel delivery for models such as the Nissan Armada, TITAN, and INFINITI Q70.

• Mechanical direct injection high pressure fuel pump
• Compatible with Nissan Armada, M56, NV2500, NV3500, TITAN, TITAN XD and INFINITI Q70, Q70L, QX56, QX80
• Manufacturer: Hitachi
• Fuel sending unit not included
• No gasket, seal, or tank seal included

Product Details and Specifications

The Hitachi HPP0026 fuel pump is a mechanical component designed to deliver high pressure fuel directly into the combustion chamber for improved engine performance and efficiency. This pump is specifically engineered for direct injection systems found in various Nissan and INFINITI models. It does not include a fuel sending unit, gasket, or tank seal, so these components must be sourced separately if needed. The mechanical design ensures reliable operation under demanding conditions, maintaining consistent fuel pressure for optimal engine function.

Compatible Vehicles and Applications

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

• Nissan Armada
• Nissan M56
• Nissan NV2500 and NV3500
• Nissan TITAN and TITAN XD
• INFINITI Q70 and Q70L
• INFINITI QX56 and QX80

It is intended for use in vehicles equipped with mechanical direct injection fuel systems requiring precise high pressure fuel delivery.

Common Issues Addressed by the HPP0026 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 or pressure drops in direct injection systems
• Replacement of worn or damaged mechanical fuel pumps in compatible Nissan and INFINITI models

Installation Notes and Tips

When installing the Hitachi HPP0026 fuel pump, ensure the vehicle is properly depressurized and the battery is disconnected to prevent electrical hazards. Since this pump does not include a gasket or seal, inspect and replace these components as necessary to avoid leaks. Follow manufacturer torque specifications and alignment procedures to ensure proper fitment and operation. Professional installation is recommended for accurate calibration and system testing.

Quality Assurance and Warranty

Manufactured by Hitachi, the HPP0026 fuel pump meets strict 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. Verify warranty terms with the supplier or manufacturer prior to installation.