Delphi HM10056 Direct Injection High Pressure Fuel Pump

Overview of Delphi HM10056 Direct Injection High Pressure Fuel Pump

The Delphi HM10056 is a mechanical direct injection high pressure fuel pump designed for select Audi and Volkswagen models. Engineered with a durable metal housing and precise inlet and outlet fittings, this fuel pump supports efficient fuel delivery for gas engines in vehicles like the Audi A3 Quattro and Volkswagen GTI.

• Compatible with Audi A3 Quattro, A6, A6 Quattro, S3, TT Quattro, and Volkswagen GTI
• Mechanical pump type with metal housing in silver finish
• Inlet outside diameter of 0.313 inches with hose bead inlet type
• Three threaded outlets with M14-1.5 fitting size
• Two male blade terminals for electrical connection
• External mounting design without included mounting hardware or wiring harness
• Standard replacement grade for reliable performance

Detailed Product Description

The Delphi HM10056 direct injection high pressure fuel pump is built to meet the fuel delivery demands of gas-powered engines in specific Audi and Volkswagen vehicles. Its mechanical operation ensures consistent fuel pressure necessary for direct injection systems. The pump features a robust metal housing finished in silver, providing durability and resistance to engine bay conditions. The inlet uses a hose bead type connection with a 0.313-inch outside diameter, while the outlet includes three threaded ports sized M14-1.5, allowing secure fuel line attachment. Electrical connections are made via two male blade terminals, designed for straightforward integration with the vehicle's wiring. This external pump does not include mounting hardware, gaskets, or wiring harnesses, so these components should be sourced separately during installation.

Applications and Common Issues Addressed

• Restores proper fuel pressure in direct injection systems for Audi A3 Quattro and Volkswagen GTI
• Resolves engine hesitation or stalling caused by fuel pump failure
• Eliminates rough idling or misfires related to inconsistent fuel delivery
• Addresses fuel leaks due to worn or damaged pump housing
• Improves overall engine performance and fuel efficiency in compatible models

Installation Notes and Tips

• Compatible with external mounting only; verify vehicle-specific mounting points
• Ensure correct connection of the two male blade terminals to avoid electrical issues
• Use appropriate fuel line fittings matching the M14-1.5 threaded outlets
• Mounting hardware and gaskets are not included and must be obtained separately
• Follow vehicle manufacturer guidelines for fuel system depressurization before removal

Quality Assurance and Warranty

Delphi manufactures the HM10056 as a standard replacement part, meeting OEM specifications for fit and function. The metal housing and mechanical design provide durability under normal operating conditions. While specific warranty details may vary, Delphi parts typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or supplier information for exact warranty terms.