OES Genuine Door Glass Mount Rail - Use with 911 542 929 42 regulator.; 1965-1969 Porsche 911, H6 2.0L; 1970-1971 Porsche 911, H6 2.2L; 1972-1973 Porsche 911, H6 2.4L; 1974 Porsche 911 Carrera; 1974 Porsche 911 S; 1975 Porsche 911; 1976-1977 Porsche 911 S