Brand ngk part name spark plug part number 5627 technical specification electrode gap mm 0 6 spark position mm 1 spark plug 1 earthed electrode outer thread mm 14 0 thread length mm 19 spanner size 20 8 mm spark plug no interference suppression spark plug platinum middle electrode spark plug unscrewable sae connector spark plug with gasket seat this part fits with the following models porsche 924 2 0 carrera gt 75 89 209 1984 porsche 924 2 0 turbo 75 89 177 1984