One of the most important parts of your clutch system is the clutch master cylinder. The master cylinder is a piston that is depressed when you step on the clutch pedal. It transfers that power to the clutch slave cylinder, which actuates the clutch. If your clutch master cylinder fails, you will not get the right action on your clutch disc, preventing smooth shifting. If you neglect to replace your failed clutch master cylinder with a high quality Sachs Clutch Master Cylinder, you will quickly begin to incur serious and expensive transmission damage. Master cylinders can fail in several ways, but the most common failure is leaky seals. Once the hydraulic fluid begins to leak out, air can seep in, allowing the hydraulic fluid to become compressible. Once that happens, the amount of distance and force you put on the clutch pedal will not be reflected in the clutch slave cylinder, so your clutch will never engage completely. A Sachs Clutch Master Cylinder will fix that problem. Installation of a Sachs Clutch Master Cylinder can be a fairly tricky proposition, so professional installation is recommended if you are not an experienced mechanic. All our customers desire courteous technical help when looking at good quality automotive parts. Accordingly, we maintain a 24-hour, 7 day a week technical help desk to support you with your queries. To sweeten the deal, we always offer 100% free shipping for every order above $50. If you spot a better price somewhere else, give us a call - we always beat any advertised price for auto parts.