Fits: 2015 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD LML/L5P Duramax Diesel

Replace your leaking power brake hydro booster and restore braking power with this genuine GM replacement. These boosters connect the brake pedal apply system to the master cylinder. The brake booster is a force multiplier that causes additional force to be applied to the master cylinder for additional braking power.