This part basically takes the force from your foot when you press the clutch pedal and turns it into hydraulic pressure. It's a little chamber filled with brake fluid, and when you push the pedal, it pushes a piston inside, pressurizing that fluid. That pressure is then sent down the hydraulic line to the slave cylinder, which actually disengages the clutch. It’s a fairly simple concept, but key to getting power to the wheels. Think of it as the starting point for disengaging the engine from the transmission whenever you need to change gears. Without it working properly, you won't be able to smoothly shift, or you might not be able to shift at all. It's part of the whole hydraulic system that allows you to operate the clutch. It works with the slave cylinder, they’re a team. Well, if it fails, you'll notice if you can’t get the clutch to disengage properly. That means difficulty shifting, the clutch pedal might feel spongy or go straight to the floor, or it just won't work at all. It’s a safety item, of course, because being stuck in gear is obviously not good. A failing master cylinder can also cause a slow leak of brake fluid, which can cause other issues, and potentially lead to complete clutch failure. If you’re seeing fluid loss or having trouble shifting, it’s definitely something to look at. You can find a replacement pretty easily – we at Fixparts Online carry a good selection – and it’s a repair that can save you a lot of trouble down the road. It acts like a shield protecting the rest of your transmission from unnecessary wear. Built to last: Clutch Master Cylinder (MPN 0986486174) includes a 12-month warranty!

About Bosch

Robert Bosch GmbH is a global leader in automotive technology, offering high-quality parts and systems that enhance vehicle efficiency, safety, and reliability.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, which can save you money on repairs in the future. • They’re a leading supplier to car manufacturers, so you’re getting the same quality parts used in many new vehicles. • Bosch invests a lot in research and development, meaning their parts often have the latest technology for better performance. • You can find Bosch parts for a wide range of vehicles, from older models to the newest cars and trucks. FixParts Online – Your Trusted Source for Quality Bosch Auto Parts.