OEM INTERCHANGE PART NUMBER 1: 20759772. Replaces Part Numbers & Specifications PRODUCT TYPE: BRAKE BOOSTER. SILVERADO 2500 HD LT 8 CYL 6.0L 2007-2010 WITH HYDRO-BOOST, WITHOUT MASTER CYLINDER. SILVERADO 2500 HD LT 8 CYL 6.6L 2007-2010 WITH HYDRO-BOOST, WITHOUT MASTER CYLINDER.
