Yes, bank number is clearly written on the actuator housing. The solenoids are not interchangable either, one has a black, the other has a gray plastic insert. Porsche really wanted to make sure these won`t get mixed up.
I don`t want to destroy the other bank`s (1-3) actuator that I have because it`s good, but it would be nice to see if it`s similar inside to 4-6 or not
