🚘🚗The brake master cylinder is a crucial part of a vehicle’s braking system. It converts the force from your foot on the brake pedal into hydraulic pressure to operate the brakes on the wheels. Here's how it works: 1. Brake Pedal Pressed When you press the brake pedal, it pushes a rod (called a pushrod) into the master cylinder. 2. Hydraulic Pressure Created Inside the master cylinder, there are one or two pistons (in a single or dual circuit system) and brake fluid. As the pushrod moves the p