1981 BMW 7-Series Accessories & Parts

I was leery to go ahead with the install, however, when my car is all torn down for the repair. The part that bolt to the master cyl. has a cup like part that protrudes a bit. Well the one off my car is black and smooth all the way around. The rebuild one you sent has a silver colored broken (chipped) about 2/3 of the entire circle. It fits against an o-ring on the master cyl. All said and done it worked and I'm happy with the price and service so far. A little better quality control would help, unless the part works fine with the defects it has.