Girling Master Cylinder Direct Fit Replacements by Upgrade Motorsport

Modern Motorsport Master Cylinders Designed to Replace Older Girling Designs

Upgrade Motorsport has developed a modern range of Girling master cylinder direct fit replacements engineered specifically for modern motorsport, race car, rally, drift, track day, Formula Student, and performance automotive applications.

For decades, Girling master cylinders have been widely used throughout the motorsport industry due to their compact design, proven mounting dimensions, and compatibility with many pedal box systems. However, many original Girling units and lower quality Girling-type alternatives available today still utilise older sealing technology, imperial hydraulic fittings, and outdated manufacturing standards.

Upgrade Motorsport recognised the need for a higher quality modern alternative that retains the original Girling flange fitment while delivering improved reliability, modern hydraulic compatibility, and professional motorsport performance.

Our direct replacement master cylinders are designed to offer improved durability, smoother operation, modern dual piston seal technology, and lightweight construction while maintaining straightforward installation compatibility with existing Girling fitment systems.

Available Bore Sizes

Upgrade Motorsport offers the popular motorsport trilogy of master cylinder bore sizes:

• 0.625 Bore

• 0.70 Bore

• 0.75 Bore

These sizes are commonly used throughout motorsport hydraulic brake and clutch systems to fine-tune pedal feel, hydraulic pressure, and brake balance.

Why Upgrade Motorsport Master Cylinders?

Unlike many traditional Girling-style master cylinders, Upgrade Motorsport products are engineered using modern manufacturing techniques and improved internal sealing designs.

Key advantages include:

• Modern dual piston seal design for improved hydraulic reliability

• Direct Girling flange fitment compatibility

• Lightweight alloy cast and billet aluminium construction

• Improved machining tolerances and sealing performance

• Designed for motorsport brake and clutch applications

• Compatible with many existing pedal box installations

• Suitable for hydraulic clutch systems and brake systems

• Developed for motorsport reliability and repeated high-load use

Girling Direct Fit – Upgrade Motorsport Alloy Cast Body Master Cylinder

The Upgrade Motorsport alloy cast body master cylinder is a lightweight and cost-effective direct replacement for traditional Girling master cylinders.

Manufactured using high-quality alloy cast construction, these units provide dependable hydraulic performance while maintaining the traditional Girling mounting dimensions used throughout motorsport applications.

• Aluminium Cast Body

• Light Weight - 320g

• Reservoir Inlet - 7/16" - 20 UNF

• Pressure Outlet - 3/8” - 24 UNF

• Push Rod Thread: 5/16” UNF

• 2 1/4" (57mm) Between Mounting Points

Upgrade Motorsport Alloy Cast Body Master Cylinder with Integral Reservoir

For applications requiring a compact all-in-one hydraulic solution, Upgrade Motorsport also offers alloy cast body master cylinders with integral fluid reservoirs.

This design simplifies installation while reducing the need for separate remote reservoir systems, making it ideal for compact engine bays and space-restricted pedal box installations.

Benefits include:

• Simplified installation

• Reduced plumbing complexity

• Compact packaging

• Lightweight construction only 520g

• Modern sealing reliability

• Direct Girling fitment compatibility

• Aluminium Cast Body

• Pressure Outlet - 3/8” - 24 UNF

• Push Rod Thread: 5/16” UNF

• 2 1/4" (57mm) Between Mounting Points

Upgrade Motorsport CNC Alloy Billet Flange Fitment Push-Type Master Cylinder

For professional motorsport and high-performance applications, Upgrade Motorsport also manufactures precision CNC machined billet alloy flange fitment push-type master cylinders.

These premium lightweight units feature:

• CNC machined billet alloy body

• Extremely lightweight construction only 207g

• Dual piston seal technology

• Modern M10 Inlet and Outlet hydraulic ports

• Push Rod Thread: 5/16” UNF

• 2 1/4" (57mm) Between Mounting Points

• Direct Girling flange compatibility

• Improved corrosion resistance anodised finish

• Professional motorsport quality manufacturing

Designed for drivers and teams seeking high-end hydraulic performance combined with Girling compatibility.

A Modern Alternative to Older Girling Master Cylinders

Many older Girling master cylinder designs were originally developed decades ago and continue to be used across motorsport today. However, modern motorsport applications place significantly greater demands on hydraulic systems, requiring improved sealing technology, more precise machining tolerances, lighter materials, and compatibility with modern hydraulic plumbing standards.

Upgrade Motorsport master cylinders were developed to provide motorsport teams and vehicle builders with a modern, reliable, direct-fit replacement solution that preserves the proven Girling mounting style while delivering improved quality, durability, and performance.

Our master cylinders are trusted by motorsport teams worldwide looking for reliable brake and clutch hydraulic solutions without compromising on quality or fitment compatibility.

Suitable Applications

Upgrade Motorsport Girling replacement master cylinders are suitable for:

• Formula Student

• Motorsport Pedal Boxes

• Race Cars

• Rally Cars

• Drift Cars

• Historic Motorsport

• Kit Cars

• Track Cars

• Hydraulic Clutch Systems

• Motorsport Brake Systems

• Custom Automotive Builds

Ideal for:

• Race Cars

• Rally Cars

• Formula Student Cars

• Drift Cars

• Kit Cars

• Track Day Cars

• Hydraulic Clutch Systems

• Brake Pedal Boxes

Upgrade Motorsport

Upgrade Motorsport specialises in high-quality lightweight motorsport hydraulic solutions engineered for performance, reliability, and modern motorsport applications.

Our products are designed to deliver professional motorsport quality while maintaining practical compatibility with widely used industry-standard mounting systems.

Find out more at: https://www.upgrademotorsport.co.uk/girling-master-cylinder-direct-fit-replacements-by-upgrade-motorsport