HomeAir and Fuel Delivery > FiltersStandard Ignition PR331 Fuel Filter and Pressure Regulator Assembly
Part #: PR331

Standard Ignition PR331 Fuel Filter and Pressure Regulator Assembly

⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, X3
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Overview of Standard Ignition Fuel Filter and Pressure Regulator Assembly

The Standard Ignition PR331 fuel filter and pressure regulator assembly is designed specifically for BMW X3 models. This component integrates a fuel filter with a pressure regulator to maintain optimal fuel system performance in gas-powered vehicles.

  • Includes caution sheet for safe handling and installation
  • Functions as a fuel pressure regulator to maintain consistent fuel flow
  • Straight nipple orientation for direct and secure fuel line connection
  • Compatible with gas fuel systems
  • Designed for BMW X3 fuel delivery systems

Detailed Product Description

The PR331 from Standard Ignition combines a fuel filter and pressure regulator into a single assembly, ensuring that your BMW X3’s fuel system receives clean fuel at the correct pressure. The straight nipple orientation simplifies installation by providing a direct path for fuel lines, reducing the risk of leaks or improper fitment. This assembly is engineered for gas system types, making it suitable for the fuel delivery requirements of BMW X3 vehicles. The included caution sheet provides important safety and installation information to help maintain system integrity.

Common Applications and Issues Addressed

  • Prevents fuel contamination by filtering out debris and impurities
  • Maintains proper fuel pressure to optimize engine performance
  • Helps resolve fuel delivery inconsistencies or pressure drops
  • Reduces risk of engine hesitation or stalling due to fuel supply issues
  • Supports overall fuel system reliability in BMW X3 gas models

Installation Notes and Tips

  • Ensure the fuel system is depressurized before removal of the old assembly
  • Verify straight nipple orientation aligns with existing fuel lines for proper fit
  • Follow the included caution sheet instructions carefully to avoid damage
  • Inspect fuel lines and connectors for wear or damage during installation
  • Test the fuel system for leaks after installation before starting the engine

Quality Assurance and Warranty Information

Standard Ignition parts, including the PR331 fuel filter and pressure regulator assembly, are manufactured to meet or exceed OEM specifications for fit, form, and function. This ensures reliable performance and durability in BMW X3 vehicles. The product includes a caution sheet to guide safe installation and handling. Warranty coverage details are provided by Standard Ignition and typically cover defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberPR331
ContentsIncludes Caution Sheet
Fuel TypeGas
FunctionsRegulator
Nipple OrientationStraight

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006BMWX33.0LL6N/ALocated In Fuel Tank
2006BMWX33.0LL6N/AFuel Filter and Pressure Regulator Assembly for in-tank use.
2005BMWX33.0LL6N/ALocated In Fuel Tank
2005BMWX32.5LL6N/ALocated In Fuel Tank
2005BMWX32.5LL6N/AFuel Filter and Pressure Regulator Assembly for in-tank use.
2005BMWX33.0LL6N/AFuel Filter and Pressure Regulator Assembly for in-tank use.
2004BMWX32.5LL6N/ALocated In Fuel Tank
2004BMWX33.0LL6N/ALocated In Fuel Tank
2004BMWX32.5LL6N/AFuel Filter and Pressure Regulator Assembly for in-tank use.
2004BMWX33.0LL6N/AFuel Filter and Pressure Regulator Assembly for in-tank use.

* 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:

158-1185161467661582-1979921881800-443PRDL443

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