ACDelco Genuine 178-0791 Power Brake Booster Assembly - Replacement for GM Vehicles | Improves Braking Performance for Chevy, GMC, Cadillac | Perfect for Highway Driving & Heavy Loads

ACDelco GM Original Equipment Power Brake Boosters connect the brake pedal apply system to the master cylinder, and are GM-recommended replacements for your vehicle's original components. The brake booster is a force multiplier that causes additional force to be applied to the master cylinder for additional braking power. These brake boosters have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.