This is a NOS squareback tailgate hinge (lhs). We've got the rhs one in stock as well!
OEM-Nr.: 361 827 301 B (the "B" is written on the hinge, but we can't spot a difference to the rhs ones which we've got without the "B" in stock.)
We've also got the pins to get the smaller hinge fixed in stock - check out our other ads.