HomeAir and Fuel Delivery > Fuel Pumps and Related ComponentsDelphi HM10044 Direct Injection High Pressure Fuel Pump
Part #: HM10044

Delphi HM10044 Direct Injection High Pressure Fuel Pump

6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi, RS5 and A8 Quattro
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Overview of Delphi HM10044 Direct Injection Fuel Pump

The Delphi HM10044 is a direct injection high pressure fuel pump designed specifically for select Audi models. Engineered for gas fuel systems, this mechanical pump ensures reliable fuel delivery for Audi A8 Quattro and RS5 vehicles requiring precise fuel pressure management.

  • Compatible with Audi A8 Quattro and RS5 models
  • Mechanical direct injection high pressure fuel pump
  • Metal housing with silver finish for durability
  • Threaded inlet (M12-1.5) and dual threaded outlets (M14-1.5)
  • Blade terminal type with two male terminals
  • External pump design for straightforward installation
  • Standard replacement grade part number HM10044
  • Includes instruction sheet; mounting hardware and gasket not included

Detailed Product Description

The Delphi HM10044 direct injection high pressure fuel pump is built with a robust metal housing finished in silver, providing strength and corrosion resistance. Designed for gas fuel systems, this mechanical pump features a threaded inlet fitting sized M12-1.5 and two threaded outlet fittings sized M14-1.5, allowing secure and leak-resistant connections. The pump includes two male blade terminals for electrical connection, supporting reliable power delivery. As an external pump, it is designed for ease of access and maintenance in compatible Audi vehicles.

Applications and Common Issues Addressed

  • Restores proper fuel pressure in Audi A8 Quattro and RS5 direct injection systems
  • Resolves engine performance issues caused by fuel delivery inconsistencies
  • Eliminates rough idling or stalling related to fuel pump failure
  • Addresses fuel pump noise or vibration problems
  • Prevents drivability concerns linked to mechanical pump wear

Installation Notes and Tips

  • Verify compatibility with Audi A8 Quattro and RS5 models before installation
  • Ensure all fuel lines and fittings match the specified thread sizes (inlet M12-1.5, outlet M14-1.5)
  • Use appropriate tools to avoid damaging threaded connections
  • Replace mounting hardware and gaskets separately as they are not included
  • Follow the included instruction sheet carefully for proper installation procedures

Quality Assurance and Warranty

The Delphi HM10044 fuel pump is a standard replacement part manufactured to meet OEM specifications for durability and performance. While mounting hardware and seals are not included, the pump’s metal housing and mechanical design ensure long service life under normal operating conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandDelphi
Part NumberHM10044
Drive Shaft IncludedNo
Fuel TypeGas
Gasket Or Seal IncludedNo
Housing ColorSilver
Housing MaterialMetal
In Tank or ExternalExternal
Inlet Fitting Thread SizeM12-1.5
Inlet TypeThreaded
Item GradeStandard Replacement
Mounting Hardware IncludedNo
Outlet Fitting Thread SizeM14-1.5
Outlet Quantity2
Outlet TypeThreaded
Package ContentsDirect Injection High Pressure Fuel Pump, Instruction Sheet
Pump TypeMechanical
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2015AudiRS5N/A
2014AudiA8 QuattroN/ATo 11/07/2011
2014AudiRS5N/A
2013AudiRS5N/A
2012AudiA8 QuattroN/A
2011AudiA8 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:

079 127 025079 127 025 AD079 127 025 AL079 127 025 K079 127 025 N079 127 025 P079 127 025 Q079 127 025 R079 127 026 M079 127 026 R2503084CHM10044FI1566HFS034133HFS034133AHFS034133BHFS034133CHFS034133DHFS034133EHFS034133GHFS034133HHFS034A133

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