Decided it was time to change the spark plugs on the 200 V70 R.
Old ones were NGK and shorter than the ones I bought to replace them (30751806).
Had triple checked that it was the correct part # from vida but still a little troubled by the 19mm vs 26mm plug.
Spark plug kit 1.00 30751806
B5254T4, B5244T4/T5
Spark plug kit 1.00 8692071
EXC B5254T4 B5244T4/T5
where DICE + VIDA say its definitely a B5254T4 engine.