50 DT10 / 900 50 DT10 / 900 AP 50 DT10 / 980 50 DT10 / 980 AP 50 H.P. YEAR 1966 MOTOR 50 H.P. YEAR 1968 MOTOR 50 H.P. YEAR 1970 MOTOR 50 H.P. YEAR 1971 MOTOR 50 H.P. YEAR 1973 MOTOR 50 H.P. YEAR 1981 MOTOR