This is a brand new NOS New Original Ford rocker arm. This fits the 1979 - 1993 Ford Mustang 2.3L 4 cylinder engine and is a single. This is in the Ford bag with the part number D8FZ-6564-A. I ship world wide. (KPX209; 220; 270; 298; 323; 401; 473; 476*2; KPX510; KPX552)