New brake master cylinder for Datsun 240Z, 260Z and 280Z,1971-78. Stock replacement 7/8" bore size. This is a direct replacement for your stock brake master cylinder. The 1970- Sept 71 240Z used a slightly different master cylinder configuration in which the front and rear resorvoirs were reversed from what this part is.
Choose from style A or B. The only difference is cosmetically, See pics for visual differences. Both styles function the same.


