B6HS NGK Spark plug.

NGK are very good quality spark plugs, usually made in France or Japan.

Price is for one spark plug.

Suitable for:

H Van until 9/63 
ID Normale with cast iron cylinder head (when did you last see one of those?)
Turbo charged CX models.

Traction Avant 4 and 6 cylinder models.

A Series (2CV / Dyane / Ami / Mehari etc)