GM01 001 14 8 921 NUT U SHAPE NIULTI THRD SPR M6X1 6 3 91 93 n AR 11504978 I PNLS 13 5 DEEP ZZOR A RPO DEFINITIONS L27 ENG NE 3 8L 3 8L V L67 ENGINE GAS 6 CYL 3 8L 3 8 1 N FI V6 SUPERCHARGED P 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS BUICK 44C 8 92 I 1 13 1 000 GROUP