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    Piston, brake caliper

    Product number: D025112
    ART: D025112 / EAN: 8430320084411

    AUTOFREN SEINSA
    Advised products
    Price incl. vat.
    € 11,93
    Add to cart
    Leverdatum: 13-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    ALFA ROMEO ALFA ROMEO
    BMW BMW
    MG MG
    PEUGEOT PEUGEOT
    ROVER ROVER
    SAAB SAAB
    VOLVO VOLVO
    Manufacturer Productnumber
    PEUGEOT 4400A9
    PEUGEOT 4400C1
    VOLVO 3516840
    VOLVO 35168400
    VOLVO 3516841
    VOLVO 35168418
    VOLVO 5003811
    VOLVO 5003812
    VOLVO 8111101
    VOLVO 81111015
    VOLVO 8111102
    VOLVO 81111023
    VOLVO 8602344
    VOLVO 86023447
    VOLVO 8602345
    VOLVO 8602457
    VOLVO 8602458
    VOLVO 8602498
    VOLVO 8602499
    VOLVO 9142039
    VOLVO 9142040
    VOLVO 9157434
    VOLVO 9157435
    VOLVO 9173299
    VOLVO 9173300
    VOLVO 9200131
    VOLVO 9200132
    VOLVO 9485265
    VOLVO 9485266
    SAAB 07895303
    SAAB 07895311
    SAAB 08828980
    SAAB 08828998
    SAAB 4543765
    SAAB 4543773
    SAAB 7895303
    SAAB 7895311
    SAAB 8828980
    SAAB 8828998
    SAAB 8968927
    SAAB 8968935
    SAAB 8968943
    SAAB 8968950
    BMW 34111151581
    BMW 34111151582
    BMW 34111151583
    BMW 34111151584
    BMW 34111154039
    BMW 34111154040
    BMW 34111154041
    BMW 34111154042
    BMW 34111154259
    BMW 34111154260
    BMW 34111154607
    BMW 34111154608
    BMW 34111154609
    BMW 34111154610
    BMW 34111154867
    BMW 34111154868
    BMW 34111156137
    BMW 34111156138
    BMW 34111157113
    BMW 34111157114
    BMW 34111157123
    BMW 34111157124
    BMW 34111157487
    BMW 34111157488
    BMW 34111157489
    BMW 34111157490
    BMW 34111160369
    BMW 34111160370
    BMW 34111160373
    BMW 34111160374
    BMW 34116750149
    BMW 34116750150
    BMW 34116765881
    BMW 34116765882
    ROVER SEG000040
    ROVER SEG000050
    Usage numbers
    Piston, brake caliper

    The Piston, brake caliper (D025112) 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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    Venlo
    The Netherlands

    Willem de Rijkelaan 15a, 5616 HH
    Eindhoven
    The Netherlands

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    085 401 1901
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