Main Brake Cylinder

Compatible with MERCEDES-BENZ M-CLASS (W163) ,
Ensures proper brake fluid pressure for reliable stopping power. A critical component for your vehicle's braking system.
31.18 EUR
inc. VAT 21%
In stock 32
Delivery 1 day (29.06.2026)
PN 401 398
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The main brake cylinder, also known as the master cylinder, is the heart of your vehicle's hydraulic braking system. It converts the mechanical force applied to the brake pedal into hydraulic pressure, which then forces the brake pads or shoes to engage. This component is essential for consistent and effective braking. When you press the brake pedal, the master cylinder pushes brake fluid through the brake lines to the wheels. A properly functioning master cylinder is crucial for maintaining adequate pressure throughout the system, ensuring that your brakes respond promptly and reliably. Over time, seals within the master cylinder can wear out, leading to leaks or a spongy brake pedal feel. Replacing a faulty main brake cylinder is vital for restoring optimal braking performance and ensuring your safety on the road. This TOPRAN part is designed to meet the specific requirements of your vehicle.

  • Converts pedal force into hydraulic pressure
  • Essential for brake system operation
  • Ensures consistent braking performance
  • Restores reliable stopping power
  • High-quality component from TOPRAN
  • Direct fit for specified applications
  • Critical for vehicle safety
Piston diameter [mm]
25,4
  • MERCEDES-BENZ
    • M-CLASS (W163)
      • ML 320 (163.154) (160kW/218PS)
      • ML 230 (163.136) (110kW/150PS)
      • ML 430 (163.172) (200kW/272PS)
      • ML 270 CDI (163.113) (120kW/163PS)
      • ML 400 CDI (163.128) (184kW/250PS)
      • ML 500 (163.175) (215kW/292PS)
      • ML 350 (163.157) (180kW/245PS)
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