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    Seal Ring

    Product number: 4.20548
    ART: 4.20548 / EAN: 4057795525481

    DT Spare Parts
    Advised products
    Price incl. vat.
    € 3,32
    Add to cart
    Leverdatum: 06-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    Manufacturer Productnumber
    MERCEDES-BENZ 305 997 0345 , 3059970345
    MERCEDES-BENZ 990 997 0745 , 9909970745
    MERCEDES-BENZ A305 997 0345 , A3059970345
    MERCEDES-BENZ A990 997 0745 , A9909970745
    Usage numbers
    420.548
    4
    0578E+12
    4.20548
    4057795530195

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    Seal Ring

    The Seal Ring (4.20548) creates a pressure-tight seal between critical mechanical components. Replacing it with a Porza-quality seal ring restores leak-free operation and long-term system reliability.

    FAQ

    A seal ring is a component used to create a tight seal between two connected parts. Its function is to prevent leaks of fluids or gases and protect systems from contaminants such as dirt and moisture.

    Key specifications include inner and outer diameter, thickness, material (such as rubber, FKM, PTFE, or metal), temperature resistance, pressure rating, and compatibility with the specific system. It must withstand the operating conditions of its application.

    Replacement is necessary when the seal is worn, hardened, cracked, or leaking. It is also recommended to replace seal rings during maintenance or whenever components are disassembled.

    Porza offers a fit guarantee option where your vehicle details are checked against product specifications to ensure correct compatibility.

    Porza provides high-quality sealing components with fast delivery across Europe and options for online ordering or in-store pickup.

    If the fit guarantee is selected, compatibility is verified before shipping. If the product does not fit, it can be returned according to the return policy.

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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
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