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    Piston, brake caliper

    Product number: D025239
    ART: D025239 / EAN: 8430320116761

    AUTOFREN SEINSA
    Advised products
    Price incl. vat.
    € 13,35
    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
    BMW BMW
    ISUZU ISUZU
    MAZDA MAZDA
    MITSUBISHI MITSUBISHI
    NISSAN NISSAN
    OPEL OPEL
    RENAULT RENAULT
    SEAT SEAT
    TOYOTA TOYOTA
    Manufacturer Productnumber
    MAZDA K0113361X
    MAZDA K0113371X
    MAZDA K0116661X
    MAZDA K0Y13398Z
    MAZDA K0Y13399Z
    MAZDA UGY93398Z
    MAZDA UGY93399Z
    OPEL 4300890
    OPEL 4300891
    OPEL 4314370
    OPEL 4314371
    OPEL 542049
    OPEL 542050
    OPEL 542051
    OPEL 542053
    OPEL 542107
    OPEL 542116
    OPEL 542247
    OPEL 542248
    OPEL 542277
    OPEL 5542000
    OPEL 94316097
    OPEL 94316098
    OPEL 94388012
    OPEL 94388013
    OPEL 94388014
    OPEL 94388015
    OPEL 94388016
    OPEL 94388017
    OPEL 94438685
    OPEL 94438686
    OPEL 97035248
    OPEL 97035249
    OPEL 97065350
    OPEL 97065351
    OPEL 97144476
    OPEL V
    BMW 34111161691
    BMW 34111163757
    TOYOTA 4773028170
    TOYOTA 4773028220
    TOYOTA 47731-28040 , 4773128040
    TOYOTA 4773128040
    TOYOTA 4775028170
    TOYOTA 4775028220
    NISSAN 410010W701
    NISSAN 410014BA0A
    NISSAN 410014BA0C
    NISSAN 41001JD00A
    NISSAN 410110W701
    NISSAN 410114BA0A
    NISSAN 410114BA0C
    NISSAN 41011JD00A
    NISSAN 41121-JE00A , 41121JE00A
    NISSAN 41121JE00A
    ISUZU 8943160970
    ISUZU 8943160980
    ISUZU 8943880120
    ISUZU 8943880130
    ISUZU 8943880160
    ISUZU 8943880170
    ISUZU 8944386850
    ISUZU 8944386851
    ISUZU 8944386860
    ISUZU 8944386861
    ISUZU 8970352480
    ISUZU 8970352490
    ISUZU 8970653500
    ISUZU 8970653510
    ISUZU 8971444760
    ISUZU 8971444770
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    Piston, brake caliper

    The Piston, brake caliper (D025239) 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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