Description 2 x lower engine studs for a 912 911 914 engine 2 x studs  , 2 x nuts and 2 x washers Made to exactly the same dimensions as the originals Porsche 911 F / 911 G / 912 (1965 – 1973) Porsche 914/6 (1970 – 1972) Porsche 911 Carrera (1984 – 1986) Porsche 911 Turbo (1975 – 1986). OEM 99906103402