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    Repair Kit, brake master cylinder

    Product number: D1173
    ART: D1173 / EAN: 8430320011462

    AUTOFREN SEINSA
    Advised products
    Price incl. vat.
    € 8,49
    Add to cart
    Leverdatum: 08-05-2026

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    Repair Kit, brake master cylinder

    The Repair Kit, brake master cylinder (D1173) restores internal sealing and pressure control within the brake master cylinder. Replacing worn parts restores strong pedal feel and safe hydraulic function. Use Porza’s smart search to find the correct kit.

    FAQ

    A repair kit for a brake master cylinder is a set of internal components used to restore the hydraulic function of the master cylinder without replacing the entire unit. It typically includes piston seals, O-rings, dust boots, return springs, retaining clips, and sometimes a new piston or complete insert. These kits are designed to re-seal leaking systems and restore proper pressure generation.

      Key specifications include piston (bore) diameter, seal dimensions, and compatibility with the specific brake system (e.g. ATE, Bosch). Materials are usually EPDM rubber, resistant to brake fluids such as DOT 3, DOT 4, and DOT 5.1. The components must withstand high hydraulic pressure (often exceeding 100 bar) and temperatures typically above 150–200°C, while maintaining elasticity and sealing performance.   

      A repair kit should be used when there are signs of internal or external leakage, reduced braking pressure, or a spongy brake pedal. It is commonly applied during overhaul of the braking system when the cylinder housing is still in good condition. Using a repair kit can extend the lifespan of the original component and restore proper braking performance.   

    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the repair kit matches the exact bore size, seal configuration, and brake system type of your master cylinder. This reduces the risk of ordering incorrect parts and ensures proper installation.

      Porza provides high-quality repair kits with fast delivery across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, or Belgium. This allows both workshops and individual users to quickly access the correct components. Additionally, repairing a master cylinder is often more cost-effective than replacing the entire unit.   

    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 reliable and risk-free purchasing experience.

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    Straelseweg 52, 5911 CR
    Venlo
    The Netherlands

    Willem de Rijkelaan 15a, 5616 HH
    Eindhoven
    The Netherlands

    info@porza.nl
    085 401 1901
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