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- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
The OE Match Clutch Master Cylinder is a high-quality hydraulic clutch system component designed to convert clutch pedal movement into hydraulic pressure, enabling smooth and precise clutch operation. Manufactured to OE specifications for fit, performance and durability, this master cylinder forms a critical part of the clutch actuation system, ensuring reliable engagement and disengagement of the clutch assembly.
Fits:
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Constructed from high-grade materials with precision-machined internal components and durable seals, the clutch master cylinder is engineered to withstand repeated hydraulic pressure cycles, temperature variations and long-term use. It provides consistent hydraulic force transfer between the clutch pedal and the clutch slave cylinder, helping maintain smooth gear changes and driving comfort.
What This Product Does:
- Converts clutch pedal movement into hydraulic pressure.
- Transfers hydraulic force to the clutch slave cylinder.
- Enables smooth clutch engagement and disengagement.
- Supports accurate gear selection and shifting.
- Maintains consistent clutch pedal feel.
- Helps reduce clutch system effort during operation.
- Ensures reliable clutch actuation under varying driving conditions.
- Contributes to overall drivetrain performance and drivability.
Symptoms Of Wear Or Failure:
- Soft, spongy or inconsistent clutch pedal feel.
- Clutch pedal sinking towards the floor.
- Difficulty selecting gears.
- Incomplete clutch disengagement.
- Hydraulic fluid leaks around the master cylinder.
- Low clutch fluid level.
- Clutch pedal requiring excessive effort.
- Grinding noises when shifting gears.
- Visible fluid contamination or seal failure.
- Complete loss of clutch operation in severe cases.
Why Replacement Matters:
- The clutch master cylinder operates every time the clutch pedal is pressed and is continually exposed to hydraulic pressure, heat and fluid movement. Over time, internal seals can wear, piston surfaces may deteriorate and corrosion can develop within the cylinder bore, reducing hydraulic efficiency.
- A failing clutch master cylinder can cause poor clutch operation, difficult gear changes and increased wear on the clutch assembly and transmission components. If left unresolved, hydraulic failure can result in complete loss of clutch function, potentially leaving the vehicle unable to be driven safely.
- Replacing a worn or faulty clutch master cylinder restores proper hydraulic pressure, improves clutch performance and ensures smooth, reliable gear engagement. An OE Match replacement provides factory-style fitment, dependable sealing performance and long-term durability, helping maintain the driving experience and reliability expected from your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91142317103
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Molub-Alloy Paste White T – High Performance Assembly & Anti-Fretting Paste
Molub-Alloy Paste White T is a premium high-performance assembly paste designed to provide exceptional protection against fretting corrosion, stick-slip, wear, and seizure in demanding automotive, industrial, and workshop applications.
This white assembly paste applies cleanly and appears almost colourless when spread as a thin layer, making it ideal for precision assembly work where cleanliness and protection are equally important.
Formulated for universal assembly and thin-film lubrication applications, Molub-Alloy Paste White T helps simplify component assembly and future disassembly while protecting contact surfaces against corrosion, vibration-related wear, and moisture ingress.
Its advanced formulation provides excellent resistance to both hot and cold water while delivering long-lasting corrosion protection under harsh operating conditions.
Particularly effective in applications exposed to vibration and frictional movement, the paste helps prevent fretting corrosion and reduces stick-slip behaviour, making it ideal for hydraulic cylinders, open lubrication points, threaded assemblies, sliding surfaces, and mechanical components subject to oscillating movement.
The product also helps eliminate squeaking noises and improves smooth operation in moving assemblies exposed to high loads and thermal stress.
Suitable for temperatures ranging from -30°C to +250°C, Molub-Alloy Paste White T delivers reliable lubrication and anti-corrosion performance across a wide range of workshop, automotive, and engineering environments.
Key Features
• High-performance white assembly paste
• Prevents fretting corrosion and surface wear
• Clean application with almost colourless thin-film appearance
• Helps simplify assembly and future disassembly
• Excellent anti-seize and separating properties
• Resistant to hot and cold water
• Reduces stick-slip and frictional vibration
• Helps eliminate squeaking noises
• Provides long-lasting corrosion protection
• Suitable for hydraulic cylinders and moving assemblies
• Wide operating temperature range from -30°C to +250°C
• Suitable for automotive, engineering, and industrial applications
Applications
Molub-Alloy Paste White T is ideal for:
• Assembly lubrication
• Anti-fretting protection
• Threaded fasteners and fittings
• Hydraulic cylinders
• Sliding and contact surfaces
• Open lubrication points
• Components exposed to vibration
• Mechanical assemblies requiring anti-seize protection
• Automotive workshop applications
• Industrial machinery and engineering assemblies
Why Use Molub-Alloy Paste White T?
Mechanical components exposed to vibration, friction, heat, and moisture can suffer from fretting corrosion, seizure, stick-slip, and accelerated wear.
Molub-Alloy Paste White T helps protect components by:
• Reducing friction between contact surfaces
• Preventing corrosion and seizure
• Improving assembly and removal
• Minimising vibration-induced wear
• Protecting against moisture and contamination
This makes it ideal for long-term component protection and reliable assembly work.
Temperature Performance
Designed for demanding operating conditions, Molub-Alloy Paste White T remains effective across a wide temperature range:
• Operating temperature: -30°C to +250°C
• Suitable for hot and cold operating environments
• Maintains lubrication and protection under thermal load
Clean & Professional Assembly Solution
Unlike darker anti-seize compounds, this white assembly paste offers a cleaner, more professional appearance during application and servicing.
Benefits include:
• Cleaner working environment
• Reduced visible residue
• Easier inspection during assembly
• Professional workshop finish