Power Brake Booster for Jeep Cherokee Wagoneer Buick Riviera Cadillac 83500986

• 1983-1983 Jeep Wagoneer XJ - without Master Cylinder, with Dual Diaphragm Booster. • 1984-1991 Jeep Grand Wagoneer SJ - without Master Cylinder. • 1983-1985 Buick Riviera - without Master Cylinder, without Vacuum Switch Port, with Vacuum Booster.