Master Cylinder Rebuild Kit - Clutch. The Turner Performance Products Clutch Master Cylinder Rebuild Kit provides a complete, cost-effective solution for restoring a worn or leaking clutch master cylinder. It includes all the components needed to refurbish and re-seal a single master cylinder, helping return proper lever feel and reliable performance. Features: Includes all components required to rebuild one clutch master cylinder. Contains all necessary parts to re-seal a leaking master cylinder. Note: Kit contents will vary by fitment, are subject to change and may not match the image shown. Kit Includes: 1 boot(s). 2 screw(s). 1 snap ring(s). 1 spring(s). 1 master cylinder piston set.