Hitachi

Hitachi HPP0029 Direct Injection High Pressure Fuel Pump

5.0 (1 reviews)

Hitachi HPP0029 high pressure fuel pump delivers precise direct injection performance for supercharged and turbocharged engines.

$431.78*
Check availability

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Hitachi HPP0029 Direct Injection High Pressure Fuel Pump is designed to restore or enhance fuel volume delivery in vehicles equipped with direct injection engines. Direct injection systems require substantially higher fuel pressures than traditional port injection setups, and a failing high pressure pump can cause rough idling, reduced power, misfires, and check engine lights. The HPP0029 is built from high-strength aluminum to withstand the demanding operating pressures and temperatures found in these systems, and it is engineered to perform reliably across supercharged, turbocharged, and naturally aspirated direct injection platforms.

As a mechanically operated pump driven by the engine's camshaft, the HPP0029 scales its output with engine speed, delivering precise fuel metering across the RPM range. Its ethanol compatibility makes it suitable for vehicles running standard gasoline as well as ethanol-blended fuels. Hitachi's background as an OEM supplier to major automakers lends confidence in the engineering and quality control behind this component, making it a strong choice for owners seeking a factory-grade replacement rather than a lower-tier aftermarket alternative.

Key Features

OE QUALITY: Astemo is a Tier 1 OE supplier for high pressure fuel pumps. Performs like OE to ensure quality you can depend on, right out of the box.

PERFORMANCE: Designed to enhance fuel volume delivery for exceptional operation and faster vehicle response.

DURABILITY: High strength aluminum housing for light weight and durability. Precision machined surfaces prevent fuel leakage/pressure drop while.

NEW CONSTRUCTION: 100% New, never remanufactured. No product wears the Astemo logo until it has been carefully designed, precisely manufactured,.

FITMENT: Please check the cross reference compatibility for your vehicle using the Amazon part selection tool located above the product images.

Specifications

Brand
Hitachi
Model
HPP0029
Type
High Pressure Fuel Pump
Material
High Strength Aluminum
Gas Type
Ethanol
Operation Mode
Mechanical

Pros & Cons

👍 Pros

  • High-strength aluminum construction provides durability and resistance to corrosion.
  • Engineered for direct injection, supercharged, and turbocharged applications requiring precise high-pressure fuel delivery.
  • Mechanical operation driven by the camshaft ensures consistent fuel pressure at engine speed.
  • Compatible with ethanol fuel blends, broadening fuel flexibility.

👎 Cons

  • Fitment is limited to specific vehicle applications, requiring buyers to confirm compatibility before purchase.
  • High pressure fuel pumps can be labor-intensive to install, often requiring professional mechanical expertise.
  • As a mechanical component, it depends on camshaft lobe condition, and a worn cam lobe will reduce pump output.
  • Premium pricing compared to aftermarket alternatives from lesser-known brands.

Frequently Asked Questions

The Hitachi HPP0029 is engineered specifically for direct injection fuel systems, where fuel is delivered at very high pressure directly into the combustion chamber.
Yes, the pump is designed to handle ethanol-based fuels, as indicated in its specifications.
It is a mechanically driven pump, meaning it is actuated by the engine's camshaft rather than by an electric motor, which allows it to generate the high pressures required for direct injection.
Hitachi manufactures OEM fuel system components for numerous automakers. The HPP0029 is designed as a direct-fit replacement for specific direct injection applications, but buyers should verify fitment for their particular vehicle.