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    Piston, brake caliper

    Product number: D025126
    ART: D025126 / EAN: 8430320084657

    AUTOFREN SEINSA
    Advised products
    Price incl. vat.
    € 16,07
    Add to cart
    Leverdatum: 01-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    AUDI AUDI
    CHRYSLER CHRYSLER
    DAIMLER DAIMLER
    DODGE DODGE
    FIAT FIAT
    JAGUAR JAGUAR
    LANCIA LANCIA
    MERCEDES-BENZ MERCEDES-BENZ
    VW VW
    Manufacturer Productnumber
    FIAT 68029849AC
    FIAT 68029889AD
    JAGUAR C2C8343
    JAGUAR C2C8344
    JAGUAR JLM20925
    JAGUAR JLM20926
    JAGUAR JLM21461
    JAGUAR JLM21462
    JAGUAR XR830129
    JAGUAR XR830130
    AUDI 8E0615423F
    AUDI 8E0615424F
    CHRYSLER 68029848AA
    CHRYSLER 68029848AB
    CHRYSLER 68029848AC
    CHRYSLER 68029848AD
    CHRYSLER 68029849AA
    CHRYSLER 68029849AB
    CHRYSLER 68029849AD
    VAG 3D0615423
    VAG 3D0615424
    VAG 447615423
    VAG 447615424
    VAG 4B0615423
    VAG 4B0615424
    VAG 4D0615405M
    VAG 4D0615405Q
    VAG 4D0615406M
    VAG 4D0615406Q
    VAG 4D0615423
    VAG 4D0615423B
    VAG 4D0615423E
    VAG 4D0615424
    VAG 4D0615424B
    VAG 4D0615424E
    VAG 8E0615423C
    VAG 8E0615423J
    VAG 8E0615424C
    VAG 8E0615424J
    VAG 8K0615423E
    VAG 8K0615423K
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    Piston, brake caliper

    The Piston, brake caliper (D025126) applies hydraulic force to the brake pads, ensuring strong and reliable braking performance. Replacing a worn piston restores smooth caliper function and consistent stopping power. Use Porza’s smart search to find the correct piston.

    FAQ

    A brake caliper piston is a cylindrical component inside the brake caliper that converts hydraulic pressure into mechanical force. When the brake pedal is pressed, brake fluid pushes the piston outward, pressing the brake pads against the disc to create friction and slow the vehicle. The piston then retracts slightly after braking to maintain proper clearance between the pads and the disc.


    Key specifications include piston diameter, height, material type, and surface finish. Pistons are commonly made from steel, aluminum, or phenolic (composite) materials. Steel pistons offer strength, while phenolic pistons provide better heat insulation. Surface treatments such as chrome plating or anodizing improve corrosion resistance and reduce friction. The piston must withstand high temperatures (often exceeding 200°C) and hydraulic pressure while maintaining dimensional stability.


    Replacement is necessary when the piston is corroded, pitted, seized, or causing brake fluid leaks. Symptoms include uneven braking, sticking calipers, or reduced braking performance. Pistons are often replaced during caliper overhaul along with seals and dust boots to restore proper function.


    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the piston matches the exact diameter and design required for your brake caliper, minimizing the risk of incorrect fitment.


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


    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 secure and risk-free purchasing experience.


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