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Pierburg 7.21548.51.0 Fuel Pressure RegulatorOE Quality 60-Day Returns
Part #: 7.21548.51.0

Pierburg 7.21548.51.0 Fuel Pressure Regulator

79 vehicles fit this part
Select your vehicle to confirm fitment
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Fitment: BMW, 750iL, 323Ci, 323i, 328Ci, 328i, 528i, 540i, 740i, 740iL, Z3, 323is, 328is, M3, 840Ci, 850Ci, 325i, 325is, and 530i
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Reliable Fuel Pressure Regulation for BMW Models

The Pierburg 7.21548.51.0 fuel pressure regulator is designed to maintain consistent fuel pressure in hydraulic carburetion systems. Engineered for select BMW vehicles, this component ensures optimal fuel delivery and engine performance.

  • Hydraulic operating mode for precise fuel pressure control
  • Maintains fuel pressure at 3.5 bar (50.8 psi)
  • Compatible with multiple BMW models including 3 Series, 5 Series, 7 Series, 8 Series, M3, and Z3
  • Durable construction for long-lasting performance
  • OEM-quality part number 7.21548.51.0 for accurate replacement

Technical Details and Compatibility

This fuel pressure regulator operates hydraulically to maintain a steady pressure of 3.5 bar (50.8 psi), critical for proper carburetion and fuel delivery. It is specifically compatible with BMW models such as the 323Ci, 323i, 323is, 325i, 325is, 328Ci, 328i, 328is, 528i, 530i, 540i, 740i, 740iL, 750iL, 840Ci, 850Ci, M3, and Z3. Using the correct fuel pressure regulator helps prevent fuel delivery issues that can affect engine performance and efficiency.

Common Applications and Problem Resolution

  • Regulates fuel pressure to prevent engine stalling or hesitation
  • Helps avoid fuel leaks caused by faulty pressure control
  • Prevents inconsistent fuel delivery that can lead to poor acceleration
  • Supports smooth idling and overall engine responsiveness
  • Reduces risk of fuel system damage due to pressure fluctuations

Installation Notes and Tips

When installing the Pierburg 7.21548.51.0 fuel pressure regulator, ensure the vehicle is compatible by verifying the model and engine type. Properly relieve fuel system pressure before removal to avoid fuel spray. Inspect fuel lines and connections for wear or damage during installation. Tighten fittings to manufacturer specifications to prevent leaks and ensure optimal performance.

Quality Assurance and Warranty

Manufactured by Pierburg, this fuel pressure regulator meets OEM standards for fit and function. The part number 7.21548.51.0 corresponds to a reliable replacement component designed for durability and consistent operation. Warranty coverage details should be confirmed with the distributor or installer, as they may vary.

BrandPierburg
Part Number7.21548.51.0
Operating ModeHydraulic
Pressure [bar]3.5
Pressure [psi]50.8

This part fits 79 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2001BMW750iLSedan5.4LV12N/A
2000BMW323Ci2.5LL6N/A
2000BMW323iWagon2.5LL6N/A
2000BMW323iSedan2.5LL6N/A
2000BMW328Ci2.8LL6N/A
2000BMW328iSedan2.8LL6N/A
2000BMW528iWagon2.8LL6N/A
2000BMW528iSedan2.8LL6N/A
2000BMW540iSedan4.4LV8N/A
2000BMW740iSedan4.4LV8N/A
2000BMW740iLSedan4.4LV8N/A
2000BMW750iLSedan5.4LV12N/A
2000BMWZ3Coupe3.2LL6N/A
2000BMWZ3Coupe2.8LL6N/A
2000BMWZ3Convertible2.8LL6N/A
2000BMWZ3Convertible2.5LL6N/A
1999BMW323iSedan2.5LL6N/A
1999BMW323iConvertible2.5LL6N/A
1999BMW323is2.5LL6N/A
1999BMW328iSedan2.8LL6N/A
1999BMW328iConvertible2.8LL6N/A
1999BMW328is2.8LL6N/A
1999BMW528iWagon2.8LL6N/A
1999BMW528iSedan2.8LL6N/A
1999BMW540iSedan4.4LV8N/A
1999BMW740iSedan4.4LV8N/A
1999BMW740iLSedan4.4LV8N/A
1999BMW750iLSedan5.4LV12N/A
1999BMWM3Coupe3.2LL6N/A
1999BMWM3Convertible3.2LL6N/A
1999BMWZ3Coupe3.2LL6N/A
1999BMWZ3Coupe2.8LL6N/A
1999BMWZ3Convertible2.8LL6N/A
1999BMWZ3Convertible2.5LL6N/A
1998BMW323iConvertible2.5LL6N/A
1998BMW323is2.5LL6N/A
1998BMW328iSedan2.8LL6N/A
1998BMW328iConvertible2.8LL6N/A
1998BMW328is2.8LL6N/A
1998BMW528iSedan2.8LL6N/A
1998BMW540iSedan4.4LV8N/A
1998BMW740iSedan4.4LV8N/A
1998BMW740iLSedan4.4LV8N/A
1998BMW750iLSedan5.4LV12N/A
1998BMWM3Sedan3.2LL6N/A
1998BMWM3Coupe3.2LL6N/A
1998BMWM3Convertible3.2LL6N/A
1998BMWZ3Convertible2.8LL6N/A
1997BMW328iSedan2.8LL6N/A
1997BMW328iConvertible2.8LL6N/A
1997BMW328is2.8LL6N/A
1997BMW528iSedan2.8LL6N/A
1997BMW540iSedan4.4LV8N/A
1997BMW740iSedan4.4LV8N/A
1997BMW740iLSedan4.4LV8N/A
1997BMW750iLSedan5.4LV12N/A
1997BMW840Ci4.4LV8N/A
1997BMW850CiCoupe5.4LV12N/A
1997BMWM3Sedan3.2LL6N/A
1997BMWM3Coupe3.2LL6N/A
1997BMWZ3Convertible2.8LL6N/A
1996BMW328iSedan2.8LL6N/A
1996BMW328iConvertible2.8LL6N/A
1996BMW328is2.8LL6N/A
1996BMW740iL4.4LV8N/A
1996BMW750iLSedan5.4LV12N/A
1996BMW840Ci4.4LV8N/A
1996BMW850CiCoupe5.4LV12N/A
1996BMWM3Coupe3.2LL6N/A
1995BMW325iSedan2.5LL6N/A
1995BMW325iConvertible2.5LL6N/A
1995BMW325is2.5LL6N/A
1995BMW530i3.0LV8N/A
1995BMW540i4.0LV8N/A
1995BMW740i4.0LV8N/A
1995BMW740iL4.0LV8N/A
1995BMW750iLSedan5.4LV12N/A
1995BMW840Ci4.0LV8N/A
1995BMW850CiCoupe5.4LV12N/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:

0 280 160 5041353143611013531726385135317293191353173161517263851729319173161575014

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

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