2003-2004 Buick Regal 3.8L. 2000-2005 Chevrolet Impala 3.4L, 3.8L. Brake Master Cylinder. 2003-2005 Buick Century 3.1L. 2003-2005 Chevrolet Monte Carlo 3.4L. Master Cylinder Material：Aluminum. First, screw off the old brake pipe of the master brake cylinder, and then remove it from the vacuum booster.
