1989 SPARK PLUG WIRES PLUG PLUG PLUG PLUG PLUG PLUG PLUG PLUG N0 1 NO 2 NO 3 NO 4 NO 5 NO 6 N0 7 NO B A 2 5R 12072154 12072152 12072149 12072149 A 2 8W 12072154 12072146 12072156 12072142 12072157 12072146 1990 SPARK PLUG WIRES PLUG PLUG PLUG PLUG PLUG PLUG PLUG PLUG N0 1 NO 2 N0 3 NO 4 N0 5 NO 6 NO 7 NO 8 A 2 5R 1 12072154 12072152 12072149 12072149 A 3 1T 1 12072154 12072146 12072156 12072142 12072157 12072146 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS CHEVROLET 17A 2 240 2 24 5 91