Standard Ignition MAS0431 Mass Air Flow Sensor

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Fitment Info

  • Standard Ignition MAS0431 Mass Air Flow Sensor
  • Fits: BMW 745i, BMW 745Li (check fitment chart for compatibility)
  • Confirm fitment with our fitment and interchange chart below

Fitment Table

✅ Compatible with 4 vehicles
Year Make Model Liters Cylinders Notes
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Product Description

100% new, never remanufactured, so there's no leftover debris that can cause sensor failure. 100% computer-tested to ensure the ECU receives accurate airflow readings under hard engine conditions, which are required to balance and deliver the correct air/fuel ratio to the engine in order to achieve clean burns. Proprietary sensing elements provide accurate airflow output to ECU over wide range of ambient temperatures. Manufactured to strict quality standards to ensure each part outperforms other air flow sensors in aftermarket.

Product Attributes

  • Female
  • Oval
  • Complete Assembly
  • Male
  • Blade

Interchange Part Numbers

Know the factory part number you are replacing? If it's listed below, this part will be a perfect match. If you can't find yours listed, try searching our website for your part number.