spark plugs

I am trying to find out what a bunch of spark plugs fit. I have many P-34PX and many other numbers like it. Does anyone know?

2011 Dodge Grand Caravan Crew has 314,781 miles. i replaced spark plugs 41,000 miles ago. I have noticed some sluggishness, for the lack of a better word and when i do the procedure to reset the oil change indicator, it does not work and this oil change only has 2637 miles on it. I typically...