This thing is really the heart of your braking system. Basically, when you push the brake pedal, you’re pushing on a piston inside the master cylinder. That piston then pushes brake fluid through the lines to the brakes at each wheel. It builds pressure, and that pressure is what actually clamps down on the rotors or drums to stop the car. It also holds the pressure in the lines when you’re sitting still, so you don’t lose your brake power. Some have one piston, some have two, depending on the vehicle. Think of it as the starting point for everything brake – related. It takes the force from your foot and multiplies it, sending it along to all four corners of the car. Without it working correctly, you simply won't be able to stop. It’s a pretty critical component, clearly. It's also usually mounted right up on the firewall, sort of hidden away. It's important because, well, it controls stopping. If the master cylinder fails, you’ll likely notice if you have a spongy brake pedal, or if it slowly sinks to the floor when you're holding it. Sometimes, you'll get a complete loss of brakes, which is obviously a big deal. It’s something you really don’t want to mess around with. A failing master cylinder acts like a shield slowly crumbling – you might have some braking ability at first, but it’ll steadily get worse. You can find replacements pretty easily, sites like Fixparts Online have a good selection. It’s one of those things that’s worth keeping an eye on and addressing immediately if you suspect an issue. Value-packed: Brake Master Cylinder (MPN PMD119) includes a 12-month warranty!

About TRW

TRW is renowned for its precision-engineered steering parts that meet or exceed OEM standards.

Why Choose TRW?

• TRW parts are built to meet or beat the original equipment standards, so you get reliable performance. • We offer a wide range of parts – from braking and steering to suspension and engine components – covering many vehicle makes and models. • TRW has over 100 years of experience in the automotive industry, meaning we know what it takes to build quality parts. • Choosing TRW gives you peace of mind knowing you're investing in safety and dependability for your vehicle. Drive with confidence – choose TRW parts at FixParts Online.