R64463141301
This rubber o-ring seals the b/c blinker twist-off lens. It should be solidly glued in place before attempting to twist the lens in place. Sold each, two needed per car.
Fitment: 356 1950-64, LEFT/RIGHT
S64463141301
"Rubber Seal O-ring For Turn Signal Directional Lamp"
Fitment: 356B 356C