This is the Master Cylinder/Booster assembly that you have been waiting for and it's at a price that is too good to pass up! Both pieces are 100% completely new with a fit and finish that is unmatched by other manufacturers. The booster is much smaller in size than comparable stock pieces and is available in either 7'' diameter single diaphragm for drum/drum applications, 7'' diameter dual diaphragm for disc/drum applications or 8'' diameter dual diaphragm for disc/disc applications.

Master Cylinder, 1-1/8'' Bore