spark plugs thread length

LewisR

I´ve found a bosch application guide where the listed spark plugs for the 2.2 engine are 19mm thread length. The code is FR8DCX+
But the current original plugs Im using are longer thread,

Is the application guide not correct? or is the bosch spark plug actually smaller in length for this engine?

Is that why the most recommended plug on this site is the vauxhall plug?

thanks

vocky

the vauxhall plugs are simply the best plugs, the fact they are cheap is a bonus 🙂