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477611017A/2
Product Information
Product Information
Brake Master Cylinder 23mm bore
The FTE 23 mm brake master cylinder is an OEM-quality replacement designed for the Porsche 924 braking system. Manufactured as a direct replacement for Porsche part number 477611017A, it restores the hydraulic pressure required for safe, responsive, and consistent braking performance.

Fits:
Porsche 924 2.0L 1981>>

Brake master cylinder converts brake pedal input into hydraulic pressure, supplying brake fluid evenly throughout the braking system to provide safe, predictable, and consistent stopping performance.

Key Features & Benefits
•  Genuine FTE OEM-quality hydraulic component
•  Direct replacement for Porsche 477611017A
•  23 mm bore diameter
•  Precision-machined internal components
•  Reliable hydraulic pressure and pedal feel
•  Durable seals for long service life
•  Direct-fit installation with OEM-quality performance

Why Replacing the Brake Master Cylinder Matters
The brake master cylinder is one of the most important safety components on your Porsche. Over time, internal seals can wear and the cylinder bore may deteriorate, leading to reduced hydraulic pressure and compromised braking performance. Replacing a worn master cylinder restores firm pedal feel, reliable brake response, and overall braking safety.

When to Replace the Brake Master Cylinder
•  Soft, spongy, or sinking brake pedal
•  Brake fluid leaking from the master cylinder
•  Reduced or inconsistent braking performance
•  Internal seal failure causing loss of hydraulic pressure
•  During a complete brake system restoration
•  If corrosion or excessive wear is found during inspection

Related reference numbers
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477611017A
477611017A

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