ACDelco GM Original Equipment Power Brake Boosters with Brake Master Cylinders are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These components work together to help the driver stop the vehicle. The brake booster uses a stored vacuum to overcome the high fluid pressure in the braking system, and allows the driver to not put as much pressure on the brake pedal to brake. The Master Cylinder stores brake fluid that is pushed through the lines and that forces the brake pads against the disc when pressure is forced on the brake pedal. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

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• Allows the driver to exert less pressure on the brake pedal to make the vehicle stop
• Helps stop the vehicle when the brakes are applied
• Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
• ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies