[X-POST] Front bumper parking sensor mounts

I'm hoping someone can help me track down the part number for these little plastic clips on either side of the front grill portion?

I've got a guy trying to install parking sensors and it seems these are the ideal mounting points for the front sensors but my car doesn't have these clips (UK model - perhaps they're only included on US or OEM sensor equipped cars.)

Any help on this would be greatly appreciated - I've attached an image showing exactly which parts I mean in red squares.

Note: I cross posted this to the Prius 4 forums because I'm 99% certain (and am willing to take the risk) that this part is identical across g4 and prime 2018.

 

Apologies - found out that no, these aren't the same on the normal gen 4! Oops!

Sorry for cluttering up your forum folks!

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