HomeAir and Fuel Delivery > Fuel Pumps and Related ComponentsDelphi HM10040 Direct Injection High Pressure Fuel Pump - Left
Part #: HM10040

Delphi HM10040 Direct Injection High Pressure Fuel Pump - Left

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⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi and Volkswagen, Q7, A6 Quattro, A8 Quattro, S5, Touareg, and RS4
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Overview of Delphi HM10040 Direct Injection High Pressure Fuel Pump

The Delphi HM10040 is a mechanical direct injection high pressure fuel pump designed for select Audi and Volkswagen models. Engineered with a durable metal housing and threaded inlet and outlet fittings, this external fuel pump supports efficient fuel delivery for gas engines.

  • Compatible with Audi A6 Quattro, A8 Quattro, Q7, RS4, S5, and Volkswagen Touareg
  • Mechanical pump type with external mounting position (left side)
  • Metal housing in silver finish for durability and heat resistance
  • Threaded inlet (M12-1.5) and three threaded outlets (M14-1.5) for secure fuel connections
  • Blade terminal type with two male terminals for electrical connection
  • Standard replacement grade without included mounting hardware or gasket
  • Package includes the direct injection high pressure fuel pump and instruction sheet

Detailed Product Description

The Delphi HM10040 direct injection high pressure fuel pump is specifically designed for gas-fueled engines in Audi and Volkswagen vehicles such as the A6 Quattro, A8 Quattro, Q7, RS4, S5, and Touareg. This mechanical pump features a robust metal housing finished in silver, ensuring long-lasting performance under demanding engine conditions. The pump is externally mounted on the left side and includes threaded inlet and outlet fittings (M12-1.5 inlet and M14-1.5 outlets) to provide secure and leak-resistant fuel connections. With three outlet ports, it supports complex fuel delivery systems typical in direct injection setups. The electrical connection uses two male blade terminals, facilitating straightforward integration with the vehicle's wiring system. Note that mounting hardware, gaskets, and wiring harnesses are not included, so these components should be sourced separately if needed.

Common Applications and Issues Addressed

  • Restores proper fuel pressure in direct injection systems for Audi and Volkswagen gas engines
  • Resolves fuel delivery interruptions causing engine hesitation or stalling
  • Addresses mechanical pump failures that result in low or inconsistent fuel pressure
  • Replaces worn or damaged pumps to maintain engine performance and efficiency
  • Supports repair of fuel leaks due to damaged or corroded pump housing or fittings

Installation Notes and Tips

  • Ensure compatibility with your specific Audi or Volkswagen model before installation
  • Verify the pump position is left side external mount as required
  • Use appropriate thread sealant on inlet and outlet fittings to prevent leaks
  • Check electrical connections for secure fit on the two male blade terminals
  • Since mounting hardware and gaskets are not included, prepare necessary parts prior to installation

Quality Assurance and Warranty

The Delphi HM10040 is a standard replacement grade fuel pump manufactured to meet OEM specifications for direct injection systems. Delphi products undergo rigorous quality control to ensure reliable operation and durability. While specific warranty terms may vary, Delphi typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or your parts supplier for detailed warranty information.

BrandDelphi
Part NumberHM10040
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 Quantity3
Outlet TypeThreaded
Package ContentsDirect Injection High Pressure Fuel Pump, Instruction Sheet
Position(s)Left
Pump TypeMechanical
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 16 vehicles. Search below:

YearMakeModelPositionNotes
2010AudiQ7LeftTo Chassis # 4L-9-029-260
2009AudiA6 QuattroLeft
2009AudiA8 QuattroLeft
2009AudiS5LeftTo 11/03/2008
2009VolkswagenTouaregLeftTo Chassis # 7L-9-303-000
2008AudiA6 QuattroLeft
2008AudiA8 QuattroLeft
2008AudiQ7Left
2008AudiRS4Left
2008AudiS5Left
2008VolkswagenTouaregLeft
2007AudiA6 QuattroLeft
2007AudiA8 QuattroLeft
2007AudiQ7Left
2007AudiRS4Left
2007VolkswagenTouaregLeft

* 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:

079 127 025 AF079 127 025 C2503086CHM10040FI1505HFS853103HFS853103D

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