999 076 043 03 - Cylinder Head nut - M12 x 1.5 - 78 to 86 - Porsche
Cylinder Head nut - M12 x 1.5 - 20 needed - 78 to 86 16v & 32v - Porsche
was 999 076 043 02
was N 011 020 8
was 900 034 036 01
#18 on the PET Drawing for 16v cars
#25 on the PET Drawing for 32v cars