does anyone know when the part number changed for the 1.6 n/a spark plugs ?

Been told that part no.55565219 is now replaced with 25193473

Hi,
I've been having a few engine hiccups with my Astra J 1.4T.
I have replaced the coil pack as I heard the  original was prone to causing problems.
Anyway today I took the spark plugs out to take a look and was surprised to find these.
They are labelled as GM Champion RC10MCC R6
They were fitted by a main dealer in January 2016 as part of the service.
Does anyone recognise these as being the correct type?
Have they fitted the wrong type?
I thought they were supposed to be IFR7X-7G, GM

I dunno witch to go for out of these two

https://rover.ebay.com/rover/0/0/0?mpre=...1078449707

Or

https://rover.ebay.com/rover/0/0/0?mpre=...1570843543

Sent from my SM-G935F using Tapatalk

Hi all,
I am having exactly the same problem with a 2nd hand Astra as in this thread: https://www.vxoc.org.uk/forum/Thread-Any...t=55576026
The supplied spark plugs actually seem to be not suitable for the 1.4T engine at all. Their part number is 55565219 and they are chopper plus and not iridium.

Now, one of the supplied spark plugs broke and damaged