HomeAir and Fuel Delivery > FiltersBaldwin PA4048 Air Filter
Part #: PA4048

Baldwin PA4048 Air Filter

⚙️ 117 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, Z4, 325Ci, 330Ci, 330i, M3, X3, 320i, 325i, 325xi, 330xi, 525i, 530i, Z3, 323Ci, 323i, 328Ci, 328i, 528i, 323is, 328is, and 325is
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Overview of Baldwin PA4048 Engine Air Filter for BMW

The Baldwin PA4048 engine air filter is designed specifically for a range of BMW models, including the 320i, 325i, 330i, M3, X3, and Z4. This filter ensures proper air flow and filtration to maintain engine performance and longevity.

  • Compatible with BMW models: 320i, 323Ci, 323i, 323is, 325Ci, 325i, 325is, 325xi, 328Ci, 328i, 328is, 330Ci, 330i, 330xi, 525i, 528i, 530i, M3, X3, Z3, Z4
  • Replaces OEM part number BMW 13721730946
  • Dimensions: Length 9 21/32 inches (245.3 mm), Width 7 inches (177.8 mm), Height 2 5/16 inches (58.7 mm)
  • Engine air filter designed for optimal air and fuel delivery system performance

Detailed Product Description

The Baldwin PA4048 engine air filter is engineered to meet the specifications of BMW vehicles requiring the OEM replacement part 13721730946. With precise dimensions of 9 21/32 inches in length, 7 inches in width, and 2 5/16 inches in height, this filter fits securely within the air intake system. It is constructed to provide effective filtration of airborne contaminants, protecting the engine from dust, dirt, and debris that can impair performance or cause damage over time. This filter supports consistent airflow, which is critical for maintaining fuel efficiency and engine responsiveness in BMW models such as the 325i, 330i, and M3.

Common Applications and Issues Addressed

  • Replacement for clogged or dirty engine air filters in BMW 320i, 328i, and Z4 models
  • Helps prevent reduced engine power due to restricted airflow
  • Protects engine components from abrasive particles and contaminants
  • Supports optimal fuel combustion and emissions control
  • Addresses issues related to poor acceleration and rough idling caused by compromised air filtration

Installation Notes and Tips

Installation of the Baldwin PA4048 engine air filter is straightforward for BMW owners familiar with routine maintenance. Ensure the engine is off and cool before beginning. Remove the air filter housing cover and carefully extract the old filter. Verify the housing is clean and free of debris before inserting the new filter. Confirm the filter is seated properly to avoid air bypass. Reinstall the housing cover securely. Regular inspection and replacement intervals should follow the vehicle manufacturer’s recommendations to maintain engine performance.

Quality Assurance and Warranty

Baldwin engine air filters are manufactured to meet or exceed OEM standards for fit, form, and function. The PA4048 is designed for durability and reliable filtration performance. While specific warranty details may vary, Baldwin typically offers coverage against defects in materials and workmanship. Consult Baldwin’s warranty documentation or authorized distributors for precise warranty terms related to this engine air filter.

BrandBaldwin
Part NumberPA4048
FitsBMW Automotive
Height2 5/16
Height (mm)58.7
Length9 21/32
Length (mm)245.3
ReplacesBMW 13721730946
Width7
Width (mm)177.8

This part fits 117 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007BMWZ43.0LL6N/AOE Number : 13721744869
2006BMW325Ci2.5LL6N/AOE Number : 13721744869
2006BMW330Ci3.0LL6N/ASquare Panel; OE Number : 13721744869
2006BMW330i3.0LL6N/AOE Number : 13721744869
2006BMWM33.2LL6N/AOE Number : 13721744869
2006BMWX32.5LL6N/AOE Number : 13721730946
2006BMWX33.0LL6N/AOE Number : 13721744869
2006BMWZ43.0LL6N/AOE Number : 13721730946
2005BMW320i2.2LL6N/A
2005BMW325Ci2.5LL6N/AOE Number : 13721744869
2005BMW325i2.5LL6N/AOE Number : 13721744869
2005BMW325xi2.5LL6N/AOE Number : 13721744869
2005BMW330Ci3.0LL6N/AOE Number : 13721744869
2005BMW330i3.0LL6N/AOE Number : 13721744869
2005BMW330xi3.0LL6N/AOE Number : 13721744869
2005BMWM33.2LL6N/AOE Number : 13721744869
2005BMWX32.5LL6N/AOE Number : 13721744869
2005BMWX33.0LL6N/AOE Number : 13721744869
2005BMWZ42.5LL6N/AOE Number : 13721744869
2005BMWZ43.0LL6N/AOE Number : 13721744869
2004BMW320i2.2LL6N/A
2004BMW325Ci2.5LL6N/AOE Number : 13721744869
2004BMW325i2.5LL6N/AOE Number : 13721744869
2004BMW325xi2.5LL6N/AOE Number : 13721744869
2004BMW330Ci3.0LL6N/AOE Number : 13721744869
2004BMW330i3.0LL6N/AOE Number : 13721744869
2004BMW330xi3.0LL6N/AOE Number : 13721744869
2004BMW525i2.5LL6N/AOE Number : 13721730946
2004BMWM33.2LL6N/AOE Number : 13721730946
2004BMWX32.5LL6N/AOE Number : 13721744869
2004BMWX33.0LL6N/AOE Number : 13721744869
2004BMWZ42.5LL6N/AOE Number : 13721744869
2004BMWZ43.0LL6N/AOE Number : 13721744869
2003BMW320i2.2LL6N/A
2003BMW325Ci2.5LL6N/AOE Number : 13721744869
2003BMW325i2.5LL6N/AOE Number : 13721744869
2003BMW325xi2.5LL6N/AOE Number : 13721744869
2003BMW330Ci3.0LL6N/AOE Number : 13721744869
2003BMW330i3.0LL6N/AOE Number : 13721744869
2003BMW330xi3.0LL6N/AOE Number : 13721744869
2003BMW525i2.5LL6N/AOE Number : 13721730946
2003BMW530i3.0LL6N/AOE Number : 13721730946
2003BMWM33.2LL6N/AOE Number : 13721730946
2003BMWZ42.5LL6N/AOE Number : 13721744869
2003BMWZ43.0LL6N/AOE Number : 13721744869
2002BMW320i2.2LL6N/A
2002BMW325Ci2.5LL6N/AOE Number : 13721744869
2002BMW325i2.5LL6N/AOE Number : 13721744869
2002BMW325xi2.5LL6N/AOE Number : 13721744869
2002BMW330Ci3.0LL6N/AOE Number : 13721744869
2002BMW330i3.0LL6N/AOE Number : 13721744869
2002BMW330xi3.0LL6N/AOE Number : 13721744869
2002BMW525i2.5LL6N/AOE Number : 13721730946
2002BMW530i3.0LL6N/AOE Number : 13721730946
2002BMWM33.2LL6N/AOE Number : 13721744869
2002BMWZ32.5LL6N/AOE Number : 13721744869
2002BMWZ33.0LL6N/AOE Number : 13721744869
2002BMWZ33.2LL6N/AOE Number : 13721730946
2001BMW320i2.2LL6N/A
2001BMW325Ci2.5LL6N/AOE Number : 13721744869
2001BMW325i2.5LL6N/AOE Number : 13721744869
2001BMW325xi2.5LL6N/AOE Number : 13721744869
2001BMW330Ci3.0LL6N/AOE Number : 13721744869
2001BMW330i3.0LL6N/AOE Number : 13721744869
2001BMW330xi3.0LL6N/AOE Number : 13721744869
2001BMW525i2.5LL6N/AOE Number : 13721730946
2001BMW530i3.0LL6N/AOE Number : 13721730946
2001BMWM33.2LL6N/AOE Number : 13721730946
2001BMWZ32.5LL6N/AOE Number : 13721730946
2001BMWZ33.0LL6N/AOE Number : 13721730946
2001BMWZ33.2LL6N/AOE Number : 13721730946
2000BMW323Ci2.5LL6N/AOE Number : 13721744869
2000BMW323i2.5LL6N/AOE Number : 13721744869
2000BMW328Ci2.8LL6N/AOE Number : 13721744869
2000BMW328i2.8LL6N/AOE Number : 13721744869
2000BMW528i2.8LL6N/AOE Number : 13721730946
2000BMWZ32.5LL6N/AOE Number : 13721730946
2000BMWZ32.8LL6N/AOE Number : 13721730946
2000BMWZ33.2LL6N/A
1999BMW323i2.5LL6N/AOE Number : 13721730946
1999BMW323is2.5LL6N/AOE Number : 13721730946
1999BMW328i2.8LL6N/A
1999BMW328is2.8LL6N/A
1999BMW528i2.8LL6N/AOE Number : 13721730946
1999BMWM33.2LL6N/A
1999BMWZ32.5LL6N/A
1999BMWZ32.8LL6N/A
1999BMWZ33.2LL6N/A
1998BMW323is2.5LL6N/A
1998BMW328i2.8LL6N/A
1998BMW328is2.8LL6N/A
1998BMW528i2.8LL6N/AOE Number : 13721730946
1998BMWM33.2LL6N/A
1998BMWZ32.8LL6N/A
1998BMWZ33.2LL6N/A
1997BMW328i2.8LL6N/A
1997BMW328is2.8LL6N/A
1997BMW528i2.8LL6N/AOE Number : 13721730946
1997BMWM33.2LL6N/A
1997BMWZ32.8LL6N/A
1996BMW328i2.8LL6N/A
1996BMW328is2.8LL6N/A
1996BMWM33.2LL6N/A
1995BMW320i2.0LL6N/A
1995BMW325i2.5LL6N/A
1995BMW325is2.5LL6N/AOE Number : 13721730946
1995BMWM33.0LL6N/A
1994BMW320i2.0LL6N/A
1994BMW325i2.5LL6N/A
1994BMW325is2.5LL6N/AOE Number : 13721730946
1994BMWM33.0LL6N/AOE Number : 13721730946
1993BMW320i2.0LL6N/A
1993BMW325i2.5LL6N/A
1993BMW325is2.5LL6N/AOE Number : 13721730946
1992BMW320i2.0LL6N/A
1992BMW325i2.5LL6N/A
1992BMW325is2.5LL6N/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:

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