ARK 1″ Hydraulic Brake Master Cylinder – Suits Trailer Override Brake Systems (SKU: MSK1)

ARK MSK1 Hydraulic Master Cylinder is a compact, high-performance unit designed to drive trailer braking systems using hydraulic override couplings. With a 1-inch bore, this master cylinder generates the fluid pressure needed to activate your trailer’s hydraulic brakes quickly and effectively.

Ideal for trailers and caravans equipped with hydraulic override systems, the MSK1 is commonly mounted to the coupling head and is activated during towing when the tow vehicle slows down. Built for durability and smooth operation, this unit ensures consistent braking pressure and dependable towing safety.

Key Features:

• 1″ bore hydraulic master cylinder
• Designed for use with hydraulic override trailer brakes
• Suitable for trailers and caravans up to medium-duty applications
• Robust construction for long life and reliable performance
• Compatible with most standard override couplings
• Simple installation and service-friendly design

Whether you’re building a new braking system or replacing an old master cylinder, the ARK MSK1 offers the reliability and stopping power you need for safe towing.

FAQ

Q: What is the bore size of this master cylinder?

A: The ARK MSK1 has a 1-inch (25.4mm) bore diameter.

Q: What type of brake systems does it work with?

A: It’s specifically designed for use with hydraulic override braking systems commonly found on trailers and caravans.

Q: Where is this installed on the trailer?

A: It’s usually installed at the override coupling, where it gets activated when the tow vehicle slows down.

Q: Is it compatible with disc and drum brakes?

A: Yes, it works with both types as long as they are part of a hydraulic brake system.

Evaluation & Recommendation

The ARK MSK1 is an essential component for trailers using hydraulic override braking systems. With a 1″ bore, it provides strong and responsive fluid pressure to your calipers or drum cylinders.

Recommended for:

• Boat trailers with hydraulic brakes
• Medium-duty caravans and campers
• Trailers needing consistent and responsive braking

Installation Tips:

• Ensure compatibility with your coupling and brake setup
• Bleed the system properly to remove air after installation
• Use high-quality brake fluid to maintain system efficiency

If you’re unsure whether your system needs a 1” bore, contact us and we’ll help match the right components for your trailer setup.