The part you quoted 63 12 1 354 383 is Hella H4 lens
There is also 63 12 1 355 002 which is Bosch H4 lens
AND
63 12 8 650 125 Hella lens
63 12 8 650 126 Bosch lens
Confusing! make sure you get the right one as there is obviously some difference from one to another, even if not obvious.
Many years ago, I changed my Touring from RHD lenses to LHD. It was not a 5 minute job, and, if I remember, ended up throwing away the original rubber lens seal and buying new (also specific to which Euro bucket you have) after breaking one lens.
Good luck.