Serpentine Supercharger Front Drive Pulley, 8 Groove, 2009-2016 Cadillac CTS-V 6.2L V8, 5 Percent Overdrive, 2009-2015, 3.250 Percent Overdrive, 2016, 8.295 in. Drive Diameter, Steel, Black Finish, Sold Individually|ATI 916105 Serpentine Supercharger Front Drive Pulley for 2009-2016 Cadillac CTS-V 6.2L V8.