HomeAir and Fuel Delivery > Fuel Pumps and Related ComponentsDelphi HM10043 Direct Injection High Pressure Fuel Pump
Part #: HM10043

Delphi HM10043 Direct Injection High Pressure Fuel Pump

⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A4 Quattro and A5 Quattro
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Overview of Delphi HM10043 Direct Injection High Pressure Fuel Pump

The Delphi HM10043 is a mechanical direct injection high pressure fuel pump designed specifically for gas engines. Engineered for external mounting, this fuel pump is compatible with Audi A4 Quattro and A5 Quattro models, providing reliable fuel delivery for optimal engine performance.

  • Fuel Type: Gas
  • Terminal Type: Blade with 2 male terminals
  • Housing Material: Durable metal in silver color
  • Inlet and Outlet: Female threaded fittings (M14-1.5 thread size)
  • Outlet Quantity: 3 outlets for efficient fuel distribution
  • External pump design for easy access and maintenance
  • Standard replacement grade for dependable operation
  • Includes direct injection high pressure fuel pump and instruction sheet

Detailed Product Description

The Delphi HM10043 direct injection high pressure fuel pump is a mechanical pump designed to meet the fuel delivery requirements of Audi A4 Quattro and A5 Quattro vehicles. Its metal housing ensures durability and heat resistance, while the silver finish provides corrosion protection. The pump features female threaded inlet and outlet fittings sized M14-1.5, with three outlet ports to support precise fuel flow. The blade-type terminals with two male connectors allow for secure electrical connections. This external pump does not include mounting hardware, gaskets, seals, wiring harness, or drive shaft, so these components should be sourced separately if needed.

Compatible Vehicles and Applications

This fuel pump is compatible with the following Audi models:

  • Audi A4 Quattro
  • Audi A5 Quattro

It is designed for gas-fueled engines requiring a mechanical direct injection high pressure fuel pump to maintain proper fuel pressure and engine efficiency.

Common Issues Addressed by Delphi HM10043

  • Inconsistent fuel pressure causing engine hesitation or stalling
  • Fuel pump failure leading to no-start conditions
  • Reduced engine performance due to inadequate fuel delivery
  • Fuel leaks from worn or damaged pump fittings
  • Electrical connection problems affecting pump operation

Installation Notes and Tips

  • Ensure compatibility with Audi A4 Quattro and A5 Quattro before installation
  • Verify that mounting hardware, gaskets, and wiring harnesses are available as they are not included
  • Use proper tools to avoid damaging the M14-1.5 threaded inlet and outlet fittings
  • Follow the included instruction sheet carefully for correct installation procedures
  • Check electrical connections to the blade terminals for secure fit and corrosion-free contacts

Quality Assurance and Warranty

The Delphi HM10043 is a standard replacement grade fuel pump manufactured to meet OEM specifications. Delphi products undergo rigorous quality control to ensure reliable performance and durability. While specific warranty details may vary, Delphi typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.

BrandDelphi
Part NumberHM10043
Drive Shaft IncludedNo
Fuel TypeGas
Gasket Or Seal IncludedNo
Housing ColorSilver
Housing MaterialMetal
In Tank or ExternalExternal
Inlet Fitting Thread SizeM14-1.5
Inlet TypeFemale Threaded
Item GradeStandard Replacement
Mounting Hardware IncludedNo
Outlet Fitting Thread SizeM14-1.5
Outlet Quantity3
Outlet TypeFemale Threaded
Package ContentsDirect Injection High Pressure Fuel Pump, Instruction Sheet
Pump TypeMechanical
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2009AudiA4 QuattroN/ATo Chassis # 8K-9N 042 000 - Neckarsulm Plant Built; To Chassis # 8K-9A 145 000 - Ingolstadt Plant Built
2009AudiA5 QuattroN/ATo Chassis # 8T-9-019-500
2008AudiA5 QuattroN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

06E 127 025 MCHM10043FI1541HPP0011

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.