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Mass Air Flow Sensor Walker Products
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Mass Air Flow Sensor (Walker Products) for 2003-2006 BMW 325Ci, 325i, X3, Z4

$139.36
Save up to 80% vs List Price!

ℹ️ Product Notes

From 03/2003; For Engine Management
Complete Assembly
Walker Products MAF sensors are always 100% NEW and NEVER remanufactured! All sensors are 100% programmed and tested for fit, form, and function before being available to be sold. As an industry leading program, Walker Products manufacturers high demand SKUs in our USA facilities with OEM quality components, custom engineered circuit boards, and programing. Many of the Walker MAF parts are designed and built here in the USA at Walker Products facilities. The Walker Mass Air Flow Sensor program offers replacement sensors in both Sensor Only and Complete Sensor and Housing Assemblies. Sensor only replacement is typically faster and more economical, but some manufacturers recommend that you replace the complete housing assembly to ensure the connector air tubes are clean and to protect the sensor itself, which can be damaged by oils on your hands or even air pollution. Walker Products Mass Airflow Sensors stand apart from the competition due to the focus on ensuring customers receive the best product possible. The most popular applications are made entirely in the United States which allows for the highest quality sensors. When it comes to MAFs, it is vital that they are properly tuned to the vehicle, which is why Walker’s team of engineers work to create sensors that have custom tuned flow characteristics for the full flow spectrum. Walker MAFs continue to meet or exceed OE long-term fuel trim percentages, and calibrations go through 100% production testing and are always verified using on vehicle testing. Walker Products provides our customers with the confidence that they are investing in nothing short of the best. Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today, Walker is an ISO 9001/ IATF16949 certified manufacturer, and one of the largest privately owned manufacturers of fuel system components and engine sensors.
Brand: Walker Products
Condition: New
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🛡️ Lifetime Warranty Included

This part comes with our industry-leading lifetime warranty. Shop with confidence!

SKU #
B96AA12
  • New Condition
  • Walker Products Quality
  • Easy Installation - No Modifications
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Product Specifications


Detailed specifications and attributes for this part:

Attribute Value
CA Prop65 Lead Warning: This Product Can Expose You To Chemicals, Including Lead, Which Is Known To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. Www.p65warnings.ca.gov
Connector Gender Female
Housing Included Yes
Mounting Hardware Included No
Terminal Quantity 6

Vehicle Fitment Guide

This part fits the following vehicles:

BMW
325Ci 2003-2006 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Convertible 2003 - 2006 L6 2.5L RWD Automatic & Manual
Base Coupe 2003 - 2006 L6 2.5L RWD Automatic & Manual
325i 2003-2005 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 2003 - 2005 L6 2.5L RWD Automatic & Manual
Base Wagon 2003 - 2005 L6 2.5L RWD Automatic & Manual
X3 2004-2006 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.5i SUV 2004 - 2006 L6 2.5L AWD Automatic & Manual
3.0i SUV 2004 - 2006 L6 3.0L AWD Automatic & Manual
Z4 2003-2005 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.5i Convertible 2003 - 2005 L6 2.5L RWD Automatic & Manual
3.0i Convertible 2003 - 2005 L6 3.0L RWD Automatic & Manual

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

More Information


Walker Products MAF sensors are always 100% NEW and NEVER remanufactured! All sensors are 100% programmed and tested for fit, form, and function before being available to be sold. As an industry leading program, Walker Products manufacturers high demand SKUs in our USA facilities with OEM quality components, custom engineered circuit boards, and programing. Many of the Walker MAF parts are designed and built here in the USA at Walker Products facilities. The Walker Mass Air Flow Sensor program offers replacement sensors in both Sensor Only and Complete Sensor and Housing Assemblies. Sensor only replacement is typically faster and more economical, but some manufacturers recommend that you replace the complete housing assembly to ensure the connector air tubes are clean and to protect the sensor itself, which can be damaged by oils on your hands or even air pollution. Walker Products Mass Airflow Sensors stand apart from the competition due to the focus on ensuring customers receive the best product possible. The most popular applications are made entirely in the United States which allows for the highest quality sensors. When it comes to MAFs, it is vital that they are properly tuned to the vehicle, which is why Walker’s team of engineers work to create sensors that have custom tuned flow characteristics for the full flow spectrum. Walker MAFs continue to meet or exceed OE long-term fuel trim percentages, and calibrations go through 100% production testing and are always verified using on vehicle testing. Walker Products provides our customers with the confidence that they are investing in nothing short of the best. Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today, Walker is an ISO 9001/ IATF16949 certified manufacturer, and one of the largest privately owned manufacturers of fuel system components and engine sensors.

Interchange Parts

Brand Part Number
ACDelco 213-4557
Airtex 5S2991
BMW 13 62 7 513 957
BMW 13 62 7 566 984
BMW 13627513957
BMW 13627566984
CARDONE New 86-10124
CARDONE Reman 74-10124
CARDONE Reman 74-10237
Carquest 64-1817
Carquest 641817
Delphi AF10223
Meat & Doria 86181
SMP MAS0289
VDO A2C59511576
Wells SU6951

Fits Years: 2003 2004 2005 2006

Fits Models: 325Ci, 325i, X3, Z4

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