I just got the new cap from the dealer and it's the exact same part number.
That said, I did notice the new cap sits much tighter and there is virtually no side play when trying to shift it with my hand from side to side while tightened to the valve cover.
I dont know if this is because it's a brand new cap and the rubber seal is harder or perhaps the rubber seal compound is different.
I will monitor the situation over the new few days and let you guys know.