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    Mass Air Flow Sensor

    Product number: 8ET 009 142-021
    ART: 8ET 009 142-021 / EAN: 4082300131031

    HELLA
    Advised products
    Price incl. vat.
    € 77,10
    Add to cart
    Leverdatum: 16-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    BMW BMW
    HYUNDAI HYUNDAI
    KIA KIA
    Manufacturer Productnumber
    HYUNDAI 28164-37100 , 2816437100
    KIA 0K55813210
    KIA 2816437100
    KIA OK55813210
    BMW 1 432 356 , 1432356
    BMW 13 62 1 432 356 , 13621432356
    HITACHI 138931
    HITACHI 2508931
    MACK 4381 66742 , 438166742
    Usage numbers
    8ET009 142-021
    8ET 009 142-021
    4
    0823E+12

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    Mass Air Flow Sensor

    The Mass Air Flow Sensor (8ET 009 142-021) measures the exact air intake for precise fuel injection control. Replacing it with a Porza-quality unit restores smooth performance, efficiency, and emissions stability.

    FAQ

    A mass air flow (MAF) sensor is an electronic component that measures the amount and density of air entering the engine. Its function is to send this data to the engine control unit (ECU), which uses it to calculate the correct amount of fuel needed for optimal combustion, performance, and emissions.

    Key specifications include sensor type (hot wire or hot film), operating voltage (typically 12V), measurement range, connector type, and compatibility with the vehicle’s ECU. The sensor must provide accurate readings under varying conditions and withstand temperatures typically ranging from -40°C to +120°C.

    Replacement is necessary when the sensor becomes faulty, contaminated, or damaged. Common symptoms include rough idling, poor acceleration, increased fuel consumption, reduced engine power, or a check engine light. In some cases, cleaning the sensor may restore performance, but replacement is required if the issue persists.

    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the sensor matches your engine and ECU requirements, reducing the risk of incorrect fitment.

    Porza supplies high-quality engine management components with fast delivery across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, or Belgium. This allows quick and reliable access to essential parts for both professional workshops and individual users.

    If you select the fit guarantee, Porza verifies compatibility before shipment. If the product does not fit or meet expectations, it can be returned according to the return policy. This ensures a reliable and risk-free purchasing experience.

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