Power Brake Booster; Booster; Hydraulic Booster; Hydro Boost; Hydro Booster. Part Type: Power Brake Booster. Pwr Brake Booster. Remanufactured Power Brake Booster. Booster Type: Hydraulic. 2007 Chevrolet Suburban 2500 GM Brake Code JH6; GM Brake Codes are on the "Service Parts Identification" Sticker; without Master Cylinder; ;.