Wheel brake cylinder, Front Left Upper / Front Right Lower. Porsche 356 / 356A / 356B 1950-65  ›  69535151100

This genuine Porsche wheel brake cylinder serves selected 356, 356A and 356B front drum brakes. The specified diameter is 19.05 mm, with installation at Front Left Upper / Front Right Lower.

Fits

• Porsche 356 1950–55
• Porsche 356A 1955–59
• Porsche 356B 1959–63
• Porsche 356B Carrera and 1600 GT diagram applications 1960–65
• Porsche 356B Carrera 2000 diagram application 1960–65

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram: Brake 356, 356A 1950-1959.

Diagram: Brake (Model: 356 B, CARRERA, 1600 GT) 356B 1960-1965.

Diagram: Wheel brake cylinder / Brake master cylinder (Model: 356 B, CARRERA 2000) 356B 1960-1965.

What This Product Does

Hydraulic fluid pressure moves the cylinder piston, applying the associated shoe against the drum's internal braking surface. This component acts at the wheel; it is neither a brake disc nor the master cylinder, despite appearing alongside those assemblies in the supplied classification.

Functions

• Turns hydraulic input into brake-shoe movement.
• Actuates the shoe at its specified front-wheel position.
• Contains pressurised fluid within the cylinder during brake application.

Technical Details

• Part identification: 69535151100; brand: Porsche.
• Specified cylinder diameter: 19.05 mm.
• Installation locations: Front Left Upper / Front Right Lower; diagram remarks also identify LEFTUpper and FRONTUpperLEFT.
• Early diagram model identification: 356 A/540.1.
• The supplied rows record a quantity of one for each listed installation location; this does not establish package contents.
• Associated fittings: banjo bolt 695 351 534 00; sealing rings N 013 808 3 and 900 123 005 20. These are separate diagram references, not confirmed included components.

Symptoms of Fault

• A tendency to pull sideways as the brakes engage.
• Reduced or unequal braking at the drums.
• A pedal that feels soft or responds inconsistently.
• Fluid leakage visible near the wheel-cylinder assembly.
• A sticking piston following corrosion or prolonged storage.

Why Replacement Matters

Seal deterioration, bore corrosion or piston seizure can interfere with shoe actuation and fluid containment. Renewing a defective cylinder addresses the affected hydraulic component without changing the original drum-brake layout. Symptoms alone do not identify the failed part, so diagnosis should precede replacement.

During repair, inspect the drum, shoe linings, flexible brake hose, connecting fittings and other wheel cylinders. Follow the appropriate workshop instructions for installation, adjustment and hydraulic bleeding.

FAQs

Can this cylinder fit either front position?
The supplied information specifies Front Left Upper / Front Right Lower. Confirm the required location rather than selecting by appearance alone.

What diameter does the diagram specify?
The recorded diameter is 19.05 mm.

Does the package contain the associated fittings?
Package contents are not established by the diagram. Check the banjo bolt and both sealing-ring references separately.

Does diagram coverage establish suitability for every 356?
No. Match the exact model, production year, drum-brake arrangement and installation position, particularly for Carrera applications.