- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Diaphragm Diameter: 215mm
This vacuum brake booster (also known as a brake servo) is a replacement part designed to OE specifications. It restores proper brake booster operation, ensuring safe, powerful, and responsive braking.
Fits:
Porsche 911 SC 1978 - 1983
Porsche 911 Carrera 1984 - 1989
Diagram ref no 10
Location: Mounted between the brake pedal linkage / master cylinder and the firewall, inside the engine bay, it provides vacuum assist to the master cylinder.
This brake vacuum booster helps multiply your braking power, making the pedal easier to press while ensuring smooth, safe, and reliable stopping performance.
Why replacement matters:
• Over time, original boosters may develop internal leaks, diaphragm deterioration, or loss of vacuum integrity, leading to a hard brake pedal and diminished braking assistance
• A failing booster reduces braking efficiency, making stops less responsive and potentially dangerous
• Replacing ensures the correct internal design, vacuum chamber dimensions, diaphragm strength, and sealing to match the original factory part
• Avoids costly repairs or unsafe driving conditions due to degraded brake assist
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DOT 4
Having an extremely high boiling point and lower viscosity than required, it meets and greatly exceeds regulatory standards. Also suitable for vehicles with ABS.
Vapour Lock formation
This sort of habit leaves room for the Vapour Lock, the formation of vapour bubbles due to boiling of the brake fluid that replace the normal fluid and are compressed, thereby sending the brake pedal to its fill stoke (spongy pedal). The origin is incident in the porosity of the tubes that make up the braking circuit, which in time draw moisture into the fluid, drastically reducing the boiling point. The result is a reduced braking efficiency.
Brembo Premium Brake Fluid
Brembo Premium brake fluids have a higher boiling point that exceeds the standard, thus offering superior resistance to the Vapour Lock and ensuring braking efficiency even at low temperatures. With high anti-corrosion properties and resistance to oxidation, Brembo brake fluid also allows for long-term unaltered chemical/physical characteristics of the fluid in operating circuit; therefore, preserving its integrity.
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L040
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- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 M339 All wheel drive
Click 'Zoom in' for large parts diagram.
Diagram ref no 32
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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 (1994-1998)
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
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