SMP LX-338 Standard Ignition Control Module fits 1988 - 1986 Buick Century; 1987 - 1986 Buick Electra; 1987 - 1986 Buick LeSabre; 1987 - 1986 Buick Regal; 1987 - 1986 Buick Riviera; 1988 - 1987 Buick Skylark; 1987 - 1986 Buick Somerset; 1987 - 1986 Oldsmobile 98; 1987 - 1986 Oldsmobile Calais; 1988 Olds