I have a pair of OE Valeo parking sensors for sale. I bought them because our XC70 was showing a fault in 2 sensors on the rear.
Turns out it was loose wiring, so, given that time had elapsed between ordering and booking the car in, I'm left with a couple of brand new sensors in anthracite finish.
I bought them from this supplier via this listing, so you can check your fitment too:
https://www.ebay.co.uk/itm/363167562565
Cost me £60, all but 10p.
Selling at £45, incl postage, which is fair value for OE vs some aftermarket kit, I hope.