Porsche
99335591000
Product Information
A genuine Porsche original equipment (OE) brake master cylinder it serves as the primary hydraulic pressure generator in the braking system of selected Porsche 911 models the 993 generation.
Fits:
Porsche 993 C2 1995 - 1998
Diagram ref no 9
The brake master cylinder is a critical hydraulic component in your vehicle’s braking system. When you press the brake pedal, this device generates hydraulic pressure that is transmitted through the brake lines to the brake calipers or wheel cylinders at each wheel. This hydraulic pressure forces the brake pads or shoes against the rotors or drums, slowing and stopping the vehicle. A properly functioning master cylinder ensures:
• Consistent brake pedal feel and response
• Balanced hydraulic pressure to all wheels
• Safe, predictable braking performance under all conditions
The master cylinder contains internal pistons and seals that pressurise brake fluid when actuated by the pedal. This pressurised fluid is then routed through the brake lines to the brake calipers, activating the braking force at the wheels. Because it directly influences braking behaviour and safety, the master cylinder must maintain proper internal seals and robust construction to prevent leaks and loss of pressure.
Over time, original master cylinders can wear, develop seal leakage, or lose internal resistance, resulting in:
• Soft or spongy brake pedal feel
• Reduced braking effectiveness
• Brake fluid leaks Uneven pressure distribution.
Replacing worn or failing units restores optimum hydraulic pressure and prolongs the life of your brake system - maintaining the braking performance Porsche engineered for your 993.
Replace the master cylinder if you notice:
• Brake pedal that sinks toward the floor
• Spongy or inconsistent braking feel
• Visible brake fluid leakage from the master cylinder body
• Brake performance degradation
• During a full brake system overhaul
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99335591000
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Product Information
Brake master cylinder. A genuine Porsche original equipment (OE) brake master cylinder it serves as the primary hydraulic pressure generator in the braking system of selected Porsche 911 models the 993 generation.
Fits:
Porsche 993 C2 1995 - 1998
Diagram ref no 9
The brake master cylinder is a critical hydraulic component in your vehicle’s braking system. When you press the brake pedal, this device generates hydraulic pressure that is transmitted through the brake lines to the brake calipers or wheel cylinders at each wheel. This hydraulic pressure forces the brake pads or shoes against the rotors or drums, slowing and stopping the vehicle. A properly functioning master cylinder ensures:
• Consistent brake pedal feel and response
• Balanced hydraulic pressure to all wheels
• Safe, predictable braking performance under all conditions
The master cylinder contains internal pistons and seals that pressurise brake fluid when actuated by the pedal. This pressurised fluid is then routed through the brake lines to the brake calipers, activating the braking force at the wheels. Because it directly influences braking behaviour and safety, the master cylinder must maintain proper internal seals and robust construction to prevent leaks and loss of pressure.
Over time, original master cylinders can wear, develop seal leakage, or lose internal resistance, resulting in:
• Soft or spongy brake pedal feel
• Reduced braking effectiveness
• Brake fluid leaks Uneven pressure distribution.
Replacing worn or failing units restores optimum hydraulic pressure and prolongs the life of your brake system - maintaining the braking performance Porsche engineered for your 993.
Replace the master cylinder if you notice:
• Brake pedal that sinks toward the floor
• Spongy or inconsistent braking feel
• Visible brake fluid leakage from the master cylinder body
• Brake performance degradation
• During a full brake system overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99335591000
99335591000
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Vehicle Group
Vehicle Group
- Porsche 993 (911) C2 1994-97
Price: €617.15 inc. VAT
Orderable - 14 to 28 Days
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251611243
Product Information
Fits:
Porsche 911 1977-89
Porsche 911 (930) Turbo 1975-89
Porsche 924 1976-85
Porsche 924 S 1986-88
Porsche 928 1978-85
Porsche 944 1982-90
Porsche 968 1992-95
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Diagram ref no 23
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251611243
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Product Information
Brake Master Cylinder Seal. Fits:
Porsche 911 1977-89
Porsche 911 (930) Turbo 1975-89
Porsche 924 1976-85
Porsche 924 S 1986-88
Porsche 928 1978-85
Porsche 944 1982-90
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
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251611243
251611243
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L040
Product Information
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L040
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Product Information
Brake discs, calipers, pads and brake master cylinders are the four cardinal points of each brake system; however, they are likely to be useless without the core of the entire system, the brake fluid. This component is so neglected as to be generally controlled in a summary fashion, with topping instead of a more appropriate replacement, at the change frequency recommended by the manufacturer.
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
00004320209
00004320366
00004321082
00004330552
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4M0611021D/1
Product Information
Fits:
Porsche 95B Macan 2.0L 2014-18
Porsche 95B Macan GTS 3.0L 2014-18
Porsche 95B Macan S 3.0L DIESEL 2014-18
Click 'Zoom in' for large parts diagram.
Diagram ref n 5
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4M0611021D
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Product Information
Brake master cylinder.Fits:
Porsche 95B Macan 2.0L 2014-18
Porsche 95B Macan GTS 3.0L 2014-18
Porsche 95B Macan S 3.0L DIESEL 2014-18
Click 'Zoom in' for large parts diagram.
Diagram ref n 5
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4M0611021D
4M0611021D
PMN237
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Vehicle Group
Vehicle Group
- Porsche 95B.1 Macan Petrol 2.0L 237Bhp 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 258Bhp 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 360Bhp 2014-18
Price: €139.20 inc. VAT
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