High Customer rating
Fast delivery
OE & Aftermarket
Best Quality
B2B prices available
  •  
    • Favorites
    Login
  •  
    0
    •
    Sign in
    Mechanic/Wholesaler
  •  
    0
    •
    Helpdesk code:
    98DB4
    € 0
    GB
    VIN
    1
    2
    3

    Search by company, model and type.

    Seal Ring

    Product number: 4.20278
    ART: 4.20278 / EAN: 4047755163570

    DT Spare Parts
    Advised products
    Price incl. vat.
    € 2,44

    Core Charge 0.00

    Add to cart
    Leverdatum: 29-04-2026

    payment icons payment icons payment icons payment icons

    delivery_icon

    DHL

    Expresslevering
    delivery_icon

    UPS

    Expresslevering
    delivery_icon

    PostNL

    Expresslevering
    delivery_icon

    DPD Nederland

    Expresslevering
    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    Manufacturer Productnumber
    MERCEDES-BENZ 000 997 3445 , 0009973445
    MERCEDES-BENZ 007 997 5948 , 0079975948
    MERCEDES-BENZ A000 997 3445 , A0009973445
    MERCEDES-BENZ A007 997 5948 , A0079975948
    SCANIA 804690
    Usage numbers
    420.278
    4047755163570
    4047755163587
    4057795436176
    4.20278
    Seal Ring

    The Seal Ring (4.20278) 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.


    WhatsApp
    Click to chat
    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

    Customer Service

    Sitemap

    Terms & Conditions

    Social media