GM 19371361 2001-2019 Duramax Hydroboost Assembly

Replace your leaking power brake hydro booster and restore braking power with this genuine GM LML/L5P 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. The LML/L5P Hydroboost can be retrofitted to work on 2001-2010 Duramax trucks by enlarging the round rod hole. You will enjoy an increased stopping power over the factory 2001-2010 version.