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    Seal Ring

    Product number: 257.770
    ART: 257.770 / EAN: 4041248168998

    ELRING
    Advised products
    Price incl. vat.
    € 27,29
    Leverdatum: 29-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    Manufacturer Productnumber
    BMW 11 11 7 511 396 , 11117511396
    BMW 11 11 7 547 841 , 11117547841
    BMW 11 11 7 584 398 , 11117584398
    Usage numbers
    EL257770
    257.770
    4
    04125E+12
    Seal Ring

    The Seal Ring (257.770) 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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    kenteken

    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