HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsStandard Ignition PR545 Fuel Injection Pressure Regulator
Part #: PR545

Standard Ignition PR545 Fuel Injection Pressure Regulator

40 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, 740i, 740Li, 740Li xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, ActiveHybrid 7, Alpina B7, Alpina B7 xDrive, Alpina B7L, and Alpina B7L xDrive
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Overview of Standard Ignition Fuel Injection Pressure Regulator PR545

The Standard Ignition PR545 fuel injection pressure regulator is designed for precise fuel pressure control in select BMW models. This adjustable, returnless regulator ensures consistent fuel delivery for optimal engine performance in vehicles such as the BMW 740i, 750Li, and ActiveHybrid 7.

  • Adjustable fuel pressure regulator for fine-tuning
  • Constructed from durable steel with a chrome finish
  • Direct mounting type for straightforward installation
  • Returnless system type compatible with gas engines
  • Includes one inlet and one outlet port for efficient fuel flow

Detailed Product Description

The Standard Ignition PR545 is a new fuel injection pressure regulator engineered to maintain stable fuel pressure within the fuel injection system of BMW vehicles, including the 740Li xDrive and 750i xDrive models. Featuring a steel construction with a chrome and silver finish, this regulator offers corrosion resistance and durability. Its adjustable design allows technicians to calibrate fuel pressure according to specific engine requirements, enhancing fuel efficiency and engine responsiveness. The returnless system type eliminates the need for a fuel return line, simplifying the fuel system and reducing potential leak points.

Compatible BMW Models and Applications

This fuel injection pressure regulator is compatible with a range of BMW models, including:

  • BMW 740i and 740Li
  • BMW 740Li xDrive
  • BMW 750i and 750i xDrive
  • BMW 750Li and 750Li xDrive
  • BMW ActiveHybrid 7

Common Issues Addressed by PR545 Regulator

  • Inconsistent fuel pressure causing engine hesitation or stalling
  • Poor fuel economy due to improper fuel delivery
  • Rough idling or engine misfires related to fuel pressure fluctuations
  • Fuel leaks or pressure drops in the fuel injection system
  • Check engine light triggered by fuel system faults

Installation Notes and Tips

The PR545 regulator features a direct mounting type, allowing for straightforward replacement on compatible BMW models. When installing, ensure the fuel system is depressurized to prevent fuel spray. Verify the regulator’s adjustable settings are calibrated according to manufacturer specifications for optimal performance. Use appropriate tools to avoid damage to the steel body and chrome finish during installation.

Quality Assurance and Warranty

Standard Ignition provides this fuel injection pressure regulator as a new, high-quality replacement part. Manufactured with steel materials and finished in chrome and silver, the PR545 is built to meet OEM standards. While specific warranty details may vary, Standard Ignition parts typically come with a limited warranty covering defects in materials and workmanship to ensure reliability and customer confidence.

BrandStandard Ignition
Part NumberPR545
AdjustableYes
Automotive Performance ItemNo
ContentsRegulator
Fuel TypeGas
FunctionsRegulator
MaterialSteel
Mounting TypeDirect
New or RemanNew
Number of outlets1
Part FinishChrome
Reference Port IncludedNo
Regulator FinishSilver
Regulator MaterialSteel
TypeReturnless

This part fits 40 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015BMW740iN/A
2015BMW740LiN/A
2015BMW740Li xDriveN/A
2015BMW750iN/A
2015BMW750i xDriveN/A
2015BMW750LiN/A
2015BMW750Li xDriveN/A
2015BMWActiveHybrid 7N/A
2014BMW740iN/A
2014BMW740LiN/A
2014BMW740Li xDriveN/A
2014BMW750iN/A
2014BMW750i xDriveN/A
2014BMW750LiN/A
2014BMW750Li xDriveN/A
2014BMWActiveHybrid 7N/A
2013BMW740i3.0LL6N/A
2013BMW740LiN/A
2013BMW740Li xDriveN/A
2013BMW750iN/A
2013BMW750i xDriveN/A
2013BMW750LiN/A
2013BMW750Li xDriveN/A
2013BMWActiveHybrid 7N/A
2012BMW740i3.0LL6N/A
2012BMW740LiN/A
2012BMW750iN/A
2012BMW750i xDriveN/A
2012BMW750LiN/A
2012BMW750Li xDriveN/A
2011BMW740i3.0LL6N/A
2011BMW740LiN/A
2011BMW750iN/A
2011BMW750i xDriveN/A
2011BMW750LiN/A
2011BMW750Li xDriveN/A
2010BMW750iN/A
2010BMW750i xDriveN/A
2010BMW750LiN/A
2010BMW750Li xDriveN/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:

161172172552-19911324253800-657FP10703PRDL657

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