Part Number: 163987 The original Corteco seals made of Viton that Ferrari intended to be used in these cars:
208
288
308 GT/4
308 GTB & GTS
308 GTB & GTS QV
308 GTBi & GTSi
328
456
512 BB
550
575M
F355
F40
Mondial 3.2
Mondial 8
Mondial QV