9-Inch Black Power Brake Booster with Bracket, 1-Inch Bore Master Cylinder, Bottom Mount Valve for Disc/Drum Applications for 1967-1970 Mustang or Cougar

Discover the ultimate braking upgrade with this 9-Inch Slimline Power Brake Booster, Master Cylinder, and Disc/Drum Proportioning Valve Combo, designed specifically for seamless integration with your vehicle’s factory firewall. This high-quality power brake booster kit is an ideal solution for Mustang owners seeking either a direct factory replacement or an upgrade from manual to power brakes on vehicles equipped with automatic transmissions.

Included in this comprehensive kit is a new factory-style 1" bore master cylinder and a proportioning valve calibrated for front disc and rear drum brake setups, ensuring optimal braking performance and safety. Please note, converting from manual to power brakes will require a power brake pedal.

9-Inch Mustang Power Brake Booster with Master Cylinder Key Features Include:

• 9" Slimline Direct Fit Power Brake Booster for straightforward installation
• Factory-style 1" bore master cylinder for consistent, reliable performance
• Disc/Drum proportioning valve designed for front disc/rear drum applications
• Engineered for 1967–1970 Ford Mustangs and Mercury Cougars
• Includes necessary mounting hardware for installation

This kit enhances braking efficiency while improving overall safety and drivability. The brake booster and master cylinder are built from durable materials, with the booster featuring a sleek black finish for long-term performance and a factory-style appearance.

Ideal for classic 1967–1970 Ford Mustang and Mercury Cougar models, this 9-Inch Power Brake Booster Kit delivers modern braking capability while preserving classic vehicle aesthetics.

Specifications

• Master Cylinder Bore Size: 1 in
• Bowl Design: Dual Bowl
• Master Cylinder Material: Cast Iron
• Master Cylinder Finish: Natural
• Reservoir Included: Yes
• Reservoir Material: Cast Iron
• Master Cylinder Cap Included: Yes
• Brake Booster Type: Single Diaphragm
• Brake Booster Diameter (in): 9 in.
• Brake Booster Material: Steel
• Brake Booster Finish: Black
• Brake Pedal Rod Extension Included: Yes
• Mounting Hardware Included: Yes
• Quantity: Kit

LEED Brakes Pushrod Measuring Tool PSA Video

All LEED Brakes booster and master cylinder assemblies are preset before shipping. Watch this short video to learn how to properly measure pushrod depth and how to quickly test your measuring tool for accuracy.

Click here to learn more about why LEED Brakes has added this warning to their products.