US Motor Works USEP8666M Fuel Pump Module Assembly
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US Motor Works

US Motor Works USEP8666M Fuel Pump Module Assembly

Brand US Motor Works USEP8666M
Empty 130.0 ohms
Flow Rate Min 70.0 lph
Full 12.0 ohms
Includes Hardware and tank seal where applicable, installation instruction
Pressure Max 55.0 psi
Pressure Min 45.0 psi
Voltage 12.0 vdc
Fits Acura · 2 vehicles

OE-spec design. Tested to meet or exceed original equipment specifications.

Quality materials. Built with high-quality materials throughout the module assembly.

Fuel delivery module. Provides a 70 LPH flow rate at 45 to 55 PSI.

Cross-references Delphi FG1259, E8666M and SP8042M for the same application. See all 3.

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Fuel Pump Module Assembly for Acura RSX

US Motor Works USEP8666M is a fuel pump module assembly built for 2005-2006 Acura RSX applications with an in-tank assembly design that includes the fuel tank sending unit. It is engineered to meet or exceed original equipment specifications and uses quality materials for consistent fuel delivery and level sensing.

Key Features

  • Fits 2005-2006 Acura RSX, in tank assembly (incl. fuel tank sending unit)
  • Fuel pressure range: 45.0 to 55.0 PSI
  • Minimum flow rate: 70.0 LPH
  • 12.0 VDC electrical system
  • Fuel level sender resistance: 130.0 ohms empty, 12.0 ohms full
  • Includes hardware and tank seal where applicable, plus installation instructions

Detailed Description

This US Motor Works fuel pump module assembly is designed for Acura RSX fuel system service where stable pressure, proper flow, and accurate tank level reporting are required. Part number USEP8666M is built to OE-style specifications for 2005-2006 Acura RSX models and is suited for in-tank replacement applications that use an integrated fuel tank sending unit. This part cross-references Delphi FG1259 for the same application.

Common Repair Applications

  • Fuel pump failure causing hard starting or no-start conditions
  • Low fuel pressure that affects drivability and acceleration
  • Inaccurate fuel gauge readings from a worn sending unit
  • Intermittent fuel delivery under load
  • Fuel system noise associated with a failing in-tank module

Installation Notes

Verify the vehicle’s fuel system configuration before installation and confirm the connector, sender resistance, and pressure requirements match the original unit. Follow the included installation instructions and inspect the tank sealing surface before reassembly. For 2005-2006 Acura RSX service, USEP8666M should be installed as an in-tank assembly with attention to clean fuel system handling practices.

Quality Assurance

US Motor Works states that its fuel modules are tested to meet or exceed original equipment specifications. The USEP8666M is manufactured with quality-focused materials and built for consistent performance in Acura RSX fuel delivery applications.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2006AcuraRSXType-S2.0LL4GASN/AIn Tank Assembly (Incl. Fuel Tank Sending Unit)
2005AcuraRSXType-S2.0LL4GASN/AIn Tank Assembly (Incl. Fuel Tank Sending Unit)
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Delphi — FG1259E8666MSP8042M