After my RX failed the MOT on the strut top bearings, my local garage spoke to lexus and they do not sell just this part you have to buy the whole new strut !!!!! £750 each !!
So after spending some time on Google I found an advert on eBay and eventually spoke to this guy who was able to replace just the bearings for me at a reasonable £60 each
The business name is orchard engineering and the contact number is 07901712988
Just thought I'd pass on the good news to other RX owners
🙂