HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsDelphi FP10540 Fuel Injection Pressure Regulator
Part #: FP10540

Delphi FP10540 Fuel Injection Pressure Regulator

25 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Kia and Hyundai, Spectra, Spectra5, Tiburon, and Elantra
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Delphi Fuel Injection Pressure Regulator Overview

The Delphi FP10540 fuel injection pressure regulator is designed for precise fuel pressure control in select Hyundai and Kia vehicles. Engineered with durable metal construction, this regulator ensures consistent fuel delivery for optimal engine performance in models like the Hyundai Elantra and Kia Spectra.

  • Durable metal material for long-lasting performance
  • Compatible with Hyundai Elantra, Kia Spectra, Spectra5, and Tiburon
  • Non-adjustable design for reliable factory-spec pressure regulation
  • Push-in inlet type with a 0.51 inch (13.0 mm) diameter
  • Hose outlet type with a 0.31 inch (8.0 mm) diameter
  • Single inlet and outlet ports for straightforward installation
  • Clamp mounting type for secure attachment
  • Designed for a system pressure of 50 psi

Technical Details and Specifications

The FP10540 fuel injection pressure regulator by Delphi is constructed entirely from metal, providing strength and resistance to wear under high-pressure fuel system conditions. It features a push-in inlet port measuring 0.51 inches (13.0 mm) in diameter and a hose outlet port of 0.31 inches (8.0 mm), both designed to maintain a steady fuel flow. The regulator is non-adjustable, maintaining a fixed system pressure of 50 psi to ensure consistent fuel delivery. Installation is simplified with a clamp mounting type and one inlet and one outlet port, making it compatible with the fuel injection systems of Hyundai Elantra, Kia Spectra, Spectra5, and Tiburon models.

Compatible Vehicles and Applications

This Delphi FP10540 fuel injection pressure regulator is specifically compatible with the following vehicles:

  • Hyundai Elantra
  • Kia Spectra
  • Kia Spectra5
  • Kia Tiburon

It is designed to regulate fuel pressure within the fuel injection system, ensuring proper fuel atomization and engine efficiency.

Common Issues Addressed by the FP10540 Regulator

  • Fuel pressure fluctuations causing engine performance issues
  • Hard starting or stalling due to inconsistent fuel delivery
  • Reduced fuel efficiency from improper fuel pressure
  • Engine hesitation or misfires related to fuel system pressure
  • Fuel leaks or pressure loss from worn or damaged regulators

Installation Notes and Tips

When installing the Delphi FP10540 fuel injection pressure regulator, ensure the following:

  • Verify compatibility with your Hyundai or Kia model before installation
  • Use proper tools to secure the clamp mounting for a tight fit
  • Inspect fuel lines for wear or damage and replace if necessary
  • Confirm inlet and outlet port sizes match existing fuel lines (0.51 inch inlet, 0.31 inch outlet)
  • Follow manufacturer torque specifications to avoid damage

Quality Assurance and Warranty

Delphi manufactures the FP10540 fuel injection pressure regulator to meet OEM standards for durability and performance. The metal construction ensures resistance to corrosion and wear under typical operating conditions. While specific warranty details may vary, Delphi parts generally come with a limited warranty covering defects in materials and workmanship. Always consult the product documentation or supplier for exact warranty terms.

BrandDelphi
Part NumberFP10540
AdjustableNo
Gauge PortNo
Inlet Port Diameter0.51
Inlet Port Diameter13.0
Inlet Quantity1
Inlet TypePush In
MaterialMetal
MaterialMetal
Mounting TypeClamp
Outlet Port Diameter0.31
Outlet Port Diameter8.0
Outlet Quantity1
Outlet TypeHose
System Pressure50

This part fits 25 vehicles. Search below:

YearMakeModelPositionNotes
2009KiaSpectraN/A
2009KiaSpectra5N/A
2008HyundaiTiburonN/A
2008KiaSpectraN/A
2008KiaSpectra5N/A
2007HyundaiElantraN/A
2007HyundaiTiburonN/A
2007KiaSpectraN/A
2007KiaSpectra5N/A
2006HyundaiElantraN/A
2006HyundaiTiburonN/A
2006KiaSpectraN/A
2006KiaSpectra5N/A
2005HyundaiElantraN/A
2005HyundaiTiburonN/A
2005KiaSpectraN/A
2005KiaSpectra5N/A
2004HyundaiElantraN/A
2004HyundaiTiburonN/A
2004KiaSpectraN/A
2003HyundaiElantraN/A
2003HyundaiTiburonN/AFuel Injection Pressure Regulator fits in the fuel tank.
2003HyundaiTiburonN/A
2002HyundaiElantraN/A
2001HyundaiElantraN/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:

158-07572412031380-2D0005G1391800-524PR412PR4171

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