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. Choose Delphi: Brake Master Cylinder (MPN LM23690) is protected by a 12-month warranty!

About Delphi

Delphi is a trusted name in automotive technology, offering advanced solutions in fuel systems, electronics, and thermal management.

Why Choose Delphi?

• Delphi parts are made to fit and perform like the original equipment, so you can trust the quality and reliability. • They offer a wide range of parts, covering most vehicles on the road, making it easy to find what you need. • Delphi invests in research and development to stay ahead of the curve and provide innovative solutions for modern vehicles. • You’re getting a trusted brand with a long history of providing quality parts for both professionals and do-it-yourselfers. Delphi – trusted quality, available at FixParts Online!