Master brake cylinder

Master brake cylinder

The master cylinder, also known as the master brake cylinder, converts the pressure on the brake pedal to hydraulic pressure by feeding brake fluid into the brake circuit and controlling this according to the mechanical force.

Function

The master cylinder, also known as the master brake cylinder, converts the pressure on the brake pedal to hydraulic pressure by feeding brake fluid into the brake circuit and controlling this according to the mechanical force. Master brake cylinders are used both in disc brakes and drum brakes.

Master cylinders in older vehicle models

In master cylinders in older vehicle models, the piston collar passes over the compensating bore, the pressure chamber is closed and braking force is generated. When the driver now releases the brake pedal, the pressure piston, supported by a spring, is returned to its original position. Brake fluid then flows into the main cylinder, so that if the pedal is pressed again immediately, the brake pressure is increased.

How do I know if my brake master cylinder needs to be replaced?

Over time, the seals inside the master cylinder can break down from use and cause fluid to leak out of the system. Signs of fluid leaking along the firewall or inside the vehicle by the brake pedal will indicate that the brake master cylinder needs to be replaced. Without proper fluid levels in the system, the brake pedal can feel soft and not allow for proper movement of the brake. A soft pedal is an early sign that something can be wrong with the brake master cylinder. If the pedal feels “spongy” when you press it, this can indicate that there is air in the hydraulic system. If the pedal sinks to the floor and stays there when you take your foot off, then there is definitely a leak in the brake system.

Because of the potential danger to yourself or other drivers, any problems with your brakes should be diagnosed and fixed as quickly as possible.

Need a brake master cylinder replacement?

Your brake master cylinder plays a major role in your vehicle’s braking system, a system of which its importance cannot be overstated. Any time a part of your braking system begins to fail, it is a major safety concern and it should be replaced immediately. At 1A Auto, we carry a large selection of replacement brake master cylinders for many makes and models, and at great prices. Brake master cylinders from 1A Auto are all new, not rebuilt. They are made to original factory specifications for a trouble free direct replacement.

We also make shopping for a replacement brake master cylinder for your car, truck, SUV or van easy — we’re here to help you select the right part for your vehicle! Call our customer service toll free at 888-844-3393 if you have any questions about our parts, warranty, compatibility or to purchase, or you can buy online.

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