HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsStandard Ignition PR464 Fuel Injection Pressure Regulator
Part #: PR464

Standard Ignition PR464 Fuel Injection Pressure Regulator

12 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Subaru, Outback, Impreza, and Legacy
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Reliable Fuel Injection Pressure Regulator for Subaru Vehicles

The Standard Ignition PR464 fuel injection pressure regulator is designed to maintain consistent fuel pressure in Subaru Impreza, Legacy, and Outback models. This adjustable regulator ensures optimal fuel delivery for gas systems, supporting engine performance and efficiency.

  • Adjustable fuel pressure regulator for precise tuning
  • Constructed from durable steel and rubber materials
  • Bolt mount design for secure installation
  • Single inlet and outlet with straight nipple orientation
  • Includes a reference port for accurate pressure monitoring
  • Finished in silver for corrosion resistance
  • New, not remanufactured, ensuring reliable operation

Product Details and Specifications

The Standard Ignition PR464 is a return-type fuel injection pressure regulator specifically engineered for gas fuel systems in Subaru Impreza, Legacy, and Outback vehicles. Its steel regulator body combined with rubber components provides durability and resistance to wear. The single inlet and outlet ports, along with a straight nipple orientation, facilitate straightforward fuel line connections. The included reference port allows for precise pressure adjustments, making this part adjustable to meet specific engine requirements. The bolt mount design ensures a secure fitment, minimizing the risk of leaks or pressure drops.

Applications and Problem Solving

This fuel injection pressure regulator is used to maintain consistent fuel pressure within the fuel injection system, which is critical for proper engine operation. It addresses several common issues, including:

  • Fuel pressure fluctuations causing engine performance problems
  • Hard starting or stalling due to improper fuel delivery
  • Fuel leaks from worn or damaged regulators
  • Inconsistent fuel economy related to pressure irregularities
  • Check engine light codes related to fuel system pressure

Installation Notes and Tips

Installation of the Standard Ignition PR464 requires basic mechanical skills and proper tools. Ensure the vehicle is cool and fuel system pressure is relieved before removal. The bolt mount design allows for straightforward replacement. Verify the straight nipple orientation matches your vehicle’s fuel line setup. After installation, check for leaks and confirm fuel pressure is within manufacturer specifications using the reference port.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards. The PR464 fuel injection pressure regulator is a new component, not remanufactured, ensuring consistent quality and reliability. It comes with a limited warranty covering defects in materials and workmanship, providing confidence in long-term performance for Subaru Impreza, Legacy, and Outback owners.

BrandStandard Ignition
Part NumberPR464
AdjustableYes
Automotive Performance ItemNo
Fuel TypeGas
FunctionsRegulator
MaterialSteel and Rubber
Mounting TypeBolt Mount
New or RemanNew
Nipple OrientationStraight
Number of outlets1
Part FinishSilver
Reference Port IncludedYes
Regulator FinishSilver
Regulator MaterialSteel
TypeReturn

This part fits 12 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2004SubaruOutback3.0LH6N/A
2003SubaruOutback3.0LH6N/A
2002SubaruOutback3.0LH6N/A
2001SubaruImpreza2.2LH4N/A
2001SubaruLegacyManual2.5LH4N/A
2001SubaruOutbackManual2.5LH4N/A
2001SubaruOutback3.0LH6N/A
2000SubaruImpreza2.2LH4N/A
2000SubaruLegacyManual2.5LH4N/A
2000SubaruOutbackManual2.5LH4N/A
1999SubaruImpreza2.2LH4N/AFits vehicles equipped with California emissions.
1999SubaruLegacy2.2LH4N/AFits vehicles equipped with California emissions.

* 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:

2-19903222670AA221241725G1322800-576FP10290PR4056

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