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Brake Master Cylinder 17,05mm. Porsche 914-4 ❭ 91435501200
- Porsche 914 (1970-1976)
This OE match brake master cylinder is a direct replacement for the original Porsche component fitted to 914-4 models produced between 1970 and 1976. Manufactured to factory specifications, it features a 17.05mm bore diameter, ensuring the correct hydraulic pressure and pedal feel for the original braking system.
Fits:
Porsche 914-4 1970 - 1976
Diagram ref no
The brake master cylinder converts mechanical pedal movement into hydraulic pressure, allowing brake fluid to activate the brake calipers. It ensures consistent braking force distribution for safe and controlled stopping performance.
Function
• Converts brake pedal force into hydraulic pressure
• Distributes brake fluid to brake calipers
• Maintains consistent braking response and pedal feel
• Supports safe and controlled stopping performance
• Operates as the central hydraulic component of the braking system
Brake master cylinders wear internally over time due to seal deterioration, moisture contamination, and repeated hydraulic pressure cycles. A failing master cylinder can lead to poor braking performance, fluid leaks, or loss of pedal pressure. Replacing it restores safe braking operation, proper hydraulic pressure, and reliable pedal feel.
When to replace
• Soft or spongy brake pedal
• Brake fluid leakage around master cylinder
• Reduced braking efficiency or inconsistent pedal feel
• Internal seal failure causing pressure loss
• During complete brake system restoration or overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91435501200
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits into the Brake master cylinder

Fits:
Porsche 911 1974-86
Porsche 924 1976-80
Porsche 928 1978-95
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
113945515G
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Sold each.

Fits:
Porsche 911 1986-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
113945515H
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
Diameter of bore: ø 23.81
Fits:
Porsche 911 (930) Turbo 3.3L 1978 - 1989
The FTE brake master cylinder is a high-quality replacement hydraulic component for selected Porsche 911 Turbo models. It corresponds with Porsche reference numbers 93035501101, 93035501102, 93035501103 and 93035501104, which may represent earlier, revised or superseded versions of the original component.
The master cylinder converts pressure applied to the brake pedal into hydraulic pressure within the braking system. Brake fluid is then delivered through the hydraulic circuits to the calipers, allowing the vehicle to slow safely and predictably. Reliable master-cylinder operation is especially important on the high-performance 911 Turbo, where consistent pedal response and controlled braking are essential.
Manufactured by FTE, this tandem master cylinder is designed to provide accurate fitment, dependable internal sealing and consistent hydraulic pressure. It is suitable for replacing a leaking or internally worn original cylinder and for use during a complete brake-system restoration.
What This Part Does
When the brake pedal is pressed, pistons inside the master cylinder force brake fluid through two separate hydraulic circuits. The resulting pressure operates the brake calipers at the wheels. The tandem-circuit design provides an additional level of safety by separating the braking system into two circuits. If one circuit develops a fault, the other may retain partial braking operation.
A serviceable master cylinder helps maintain:
• Firm and consistent brake-pedal feel
• Correct hydraulic pressure
• Predictable braking response
• Balanced operation of the braking circuits
• Secure containment of brake fluid
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93035501104
The product you are viewing cross references to these numbers
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