Wanna get your Dune Buggy stopped? The master cylinder is the heart of your brake system. This is the master cylinder you need. This one will work or disc or drum setups or 2 or 4 wheel brake applications. This is a BRAND NEW (not rebuilt like others) master cylinder and a new screw on reservoir. Reservoir has quality metal fitting instead of easily warped plastic. Master is a larger 22.2 mm bore for more pressure and flow. Compared to hanging your reservoir off the bars this is a clean slick setup. Direct bolt in for stock VW pedal setup. Has three brake line ports and one brake light port. Brand new, never been used. We use them on our buggy and rails with EXCELLENT results.