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    Glow Plug

    Product number: 400 448
    ART: 400 448 / EAN:

    TOPRAN
    Advised products
    Price incl. vat.
    € 7,43
    Leverdatum: 13-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    MERCEDES-BENZ MERCEDES-BENZ
    Manufacturer Productnumber
    MERCEDES-BENZ 001 159 20 01 , 0011592001
    MERCEDES-BENZ 001 159 21 01 , 0011592101
    MERCEDES-BENZ A001 159 20 01 , A0011592001
    MERCEDES-BENZ A001 159 21 01 , A0011592101
    Usage numbers
    400 448 001

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    Glow Plug

    The Glow Plug (400 448) supports reliable cold starting in diesel engines. Replacing worn glow plugs improves starting performance and reduces emissions. Use Porza’s smart search to find the correct plugs.



    FAQ

    A glow plug is a heating element used in diesel engines to assist with starting. Its function is to heat the air inside the combustion chamber before and during engine start, ensuring proper ignition of the fuel-air mixture, especially in cold conditions. This improves starting performance, reduces emissions, and ensures smoother engine operation.

    Key specifications include voltage (typically 4.4V–12V depending on system), thread size (such as M8, M10, or M12), overall length, heating element type (metal or ceramic), and connector type. Glow plugs must withstand extremely high temperatures (often exceeding 800–1000°C) and rapid heating cycles while maintaining durability and reliability.

    Replacement is necessary when the glow plug fails or loses efficiency. Common symptoms include difficult cold starts, rough idling after startup, increased smoke, or glow plug warning lights. It is often recommended to replace glow plugs in sets to maintain consistent performance.

    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the glow plug matches the correct dimensions, voltage, and compatibility with your engine, reducing the risk of incorrect fitment.

    Porza supplies high-quality ignition and engine 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 maintenance 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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    Straelseweg 52, 5911 CR
    Venlo
    The Netherlands

    Willem de Rijkelaan 15a, 5616 HH
    Eindhoven
    The Netherlands

    info@porza.nl
    085 401 1901
    KVK 0123456678
    BTW 01NL123435B1