High Customer rating
Fast delivery
OE & Aftermarket
Best Quality
B2B prices available
  •  
    • Favorites
    Login
  •  
    0
    •
    Sign in
    Mechanic/Wholesaler
  •  
    0
    •
    Helpdesk code:
    E9079
    € 0
    GB
    VIN
    1
    2
    3

    Search by company, model and type.

    Brake Master Cylinder

    Product number: LM40825
    ART: LM40825 / EAN: 5012759058343

    DELPHI
    Advised products
    Price incl. vat.
    € 81,40
    Add to cart
    Leverdatum: 20-05-2026

    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
    MERCEDES-BENZ MERCEDES-BENZ
    Manufacturer Productnumber
    MERCEDES-BENZ 004 430 3401 , 0044303401
    MERCEDES-BENZ 004 430 3901 , 0044303901
    MERCEDES-BENZ 005 430 2401 , 0054302401
    MERCEDES-BENZ 005 430 3901 , 0054303901
    MERCEDES-BENZ A004 430 3401 , A0044303401
    MERCEDES-BENZ A004 430 3901 , A0044303901
    MERCEDES-BENZ A005 430 2401 , A0054302401
    MERCEDES-BENZ A005 430 3901 , A0054303901
    Usage numbers

    Your last viewed products

    Brake Pad Set, disc brake FEBI BILSTEIN 16840)
    Brake Pad Set, disc brake FEBI BILSTEIN 16840)
    EAN code 4027816168409
    Productnumber 16840
    Brand FEBI BILSTEIN
    Price incl. vat.
    $41.87

    In stock

    Add to cart
    Brake Pad Set, disc brake FEBI BILSTEIN 16768)
    Brake Pad Set, disc brake FEBI BILSTEIN 16768)
    EAN code 4027816167686
    Productnumber 16768
    Brand FEBI BILSTEIN
    Price incl. vat.
    $34.60

    In stock

    Add to cart
    Brake Pad Set, disc brake TRW GDB3595)
    Brake Pad Set, disc brake TRW GDB3595)
    EAN code 3322938221843
    Productnumber GDB3595
    Brand TRW
    Price incl. vat.
    $36.23

    In stock

    Add to cart
    Cap, oil filter housing FEBI BILSTEIN 172896)
    Cap, oil filter housing FEBI BILSTEIN 172896)
    EAN code 4054224728963
    Productnumber 172896
    Brand FEBI BILSTEIN
    Price incl. vat.
    $13.19

    In stock

    Add to cart
    Cooler, exhaust gas recirculation PIERBURG 7.09720.02.0)
    Cooler, exhaust gas recirculation PIERBURG 7.09720.02.0)
    EAN code 4028915913433
    Productnumber 7.09720.02.0
    Brand PIERBURG
    Price incl. vat.
    $342.29

    In stock

    Add to cart
    Control Valve, camshaft adjustment FEBI BILSTEIN 177412)
    Control Valve, camshaft adjustment FEBI BILSTEIN 177412)
    EAN code 4054224774120
    Productnumber 177412
    Brand FEBI BILSTEIN
    Price incl. vat.
    $75.65

    In stock

    Add to cart
    Filter, cabin air BOSCH 1 987 435 082)
    Filter, cabin air BOSCH 1 987 435 082)
    EAN code 4047025654654
    Productnumber 1 987 435 082
    Brand BOSCH
    Price incl. vat.
    $18.86

    In stock

    Add to cart
    Oil Cooler, engine oil FEBI BILSTEIN 188370)
    Oil Cooler, engine oil FEBI BILSTEIN 188370)
    EAN code 4054224883709
    Productnumber 188370
    Brand FEBI BILSTEIN
    Price incl. vat.
    $63.90

    In stock

    Add to cart
    Shaft Seal, differential CORTECO 01031603B)
    Shaft Seal, differential CORTECO 01031603B)
    EAN code 3358960134851
    Productnumber 01031603B
    Brand CORTECO
    Price incl. vat.
    $7.25

    In stock

    Add to cart
    Ball Joint MEYLE 11-16 010 0013)
    Ball Joint MEYLE 11-16 010 0013)
    EAN code 4040074467473
    Productnumber 11-16 010 0013
    Brand MEYLE
    Price incl. vat.
    $12.38

    In stock

    Add to cart
    Brake Master Cylinder

    The Brake Master Cylinder (LM40825) generates the hydraulic pressure needed for strong and consistent braking performance. Replacing a worn master cylinder restores firm pedal feel and safe, reliable brake operation. Use Porza’s smart search to find the correct unit.

    FAQ

    A brake master cylinder is the central hydraulic component of the braking system that converts the force from the brake pedal into hydraulic pressure. This pressure is distributed through the brake lines to the calipers or wheel cylinders, activating the brakes at each wheel. It ensures balanced and responsive braking performance across the entire vehicle.

    Key specifications include bore diameter, number of circuits (single or dual circuit), reservoir capacity, mounting configuration, and connection types for brake lines. Brake master cylinders are typically made from cast iron or aluminum, with internal seals made from EPDM rubber compatible with DOT 3, DOT 4, or DOT 5.1 brake fluids. They must withstand high hydraulic pressures (often exceeding 100 bar) and operating temperatures typically above 150–200°C.

    Replacement is necessary when there are signs of internal or external fluid leakage, reduced braking efficiency, a spongy or sinking brake pedal, or inconsistent pressure. Internal seal wear or corrosion can lead to loss of pressure and compromised braking safety. In such cases, immediate inspection and replacement are recommended.

    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the brake master cylinder matches your exact vehicle configuration, including connection types and system requirements, reducing 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 provides quick and flexible access to essential parts for both professional workshops and individual users, with reliable European-wide shipping.

    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.

    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