Makita dga452 replacing armature

Hi,
I need to replace the armature on my makita dga452, I can separate the old armature from the gear head, any suggestions?

Is it identical to the BGA452 sold in the USA:

If so, it looks like the armature and gear-head are sold as one piece.

https://www.amazon.com/Makita-619218-8-Armature-Replacement-Part/dp/B01010OBEO

https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=619218-8&_sacat=0