The A-premium Brake Master Cylinder is a replacement brake master cylinder for classic Volkswagen cars, designed to restore consistent hydraulic braking. Restorers gain confidence from a part that matches legacy fitment and reference numbers. Does it match original-spec mounting and hydraulic connections for a straightforward swap?
⚡ At a Glance
- • Bore Size: 0.75 inch bore for manual-brake hydraulic pressure characteristics
- • Best for: Owners restoring Volkswagen Beetle 1954–1964 and Karmann Ghia 1961–1964 with manual brakes
- • Not ideal for: Vehicles fitted with power-assisted brakes or systems that require an integrated reservoir or sensor
Aluminium master cylinder with a 0.75 inch bore and M10 x 1.0 outlet threads. Supplied without reservoir or sensor, specified for manual-brake fitments on select classic Volkswagen models.
Consistent pedal feel – With a 0.75-inch bore diameter
Bore diameter controls hydraulic pressure and pedal travel by determining fluid displacement per stroke. A 0.75 inch bore matches the hydraulic characteristics used on many manual-brake setups.
Predictable brake response improves modulation during restoration, helping to achieve the original braking feel on classic Beetle and Karmann Ghia cars.
Durable construction – Thanks to aluminium material
Aluminium construction reduces corrosion compared with plain steel and keeps component weight low while maintaining rigidity. Machined ports with M10 x 1.0 threads provide standardised connection points.
Longer service life and resistance to roadside corrosion reduces the need for frequent replacement in restored vehicles.
Easier parts matching – With OEM reference numbers included
Reference numbers shown include M93065 and variations of 113611021C/A/B/D, allowing cross-checks against original equipment lists. Fitment notes state compatibility with manual-brake models only.
Quicker verification against parts catalogues helps confirm correct selection, reducing the risk of fitment errors during installation.
✨ The 4 Key Reasons for A-premium Brake Master Cylinder
- Aluminium Construction, greater resistance to corrosion for longer service life
- Manual Brake Fitment, engineered specifically for Beetle and Karmann Ghia restorations
- M10 x 1.0 Outlet Threads, standard thread sizing for direct hose connections
- No Reservoir Included, allows use of original or custom reservoirs during restoration projects
📋 Technical Details at a Glance
- Category: Brake master cylinder
- Fitment: Volkswagen Beetle 1954–1964, Karmann Ghia 1961–1964
- Material: Aluminium
- Bore Diameter: 0.75 inch
- Rearward Outlet Size: M10 x 1.0
❓ Frequently Asked Questions
Q: Is a reservoir included with the master cylinder?
A: No, the unit is supplied without a reservoir or sensor, so a separate reservoir is required for installation.
Q: Which Volkswagen models are compatible?
A: Compatibility is listed for Volkswagen Beetle 1954–1964 and Karmann Ghia 1961–1964, for fitments with manual brakes; verify part match using the compatibility system before ordering.
Q: What are the key thread and bore specifications to check?
A: The master cylinder has a 0.75 inch bore, with rearward and secondary outlet threads sized M10 x 1.0; reference numbers are provided for cross-checking.
🏆 Our Verdict
Suitable for enthusiasts and mechanics restoring classic Volkswagen Beetle and Karmann Ghia models with manual brakes, who need a replacement that matches legacy specifications. The combination of a 0.75 inch bore, aluminium construction and OEM reference numbers makes parts selection and installation more straightforward. While buyers should compare options carefully, the specified materials and references suggest a durable, long-term replacement for period restorations.
