Which Bilstein strut insert is this: 31321127487.2

[JeffBij]

Just pulled a set of Bilstein front strut inserts out of an '87 325IS that I'm stripping down as a parts car.

I'm trying to figure which insert it is (i.e. HD, sport, touring, etc.) and which BMW model/year they are actually from. The diameter is about 38.5mm, so I guessing it is for the 45mm strut tube. I can't match the part number up.

Part number is 31321127487.2

Anyone got any ideas?

Thanks,

Jeff B.
Roanoke VA