New round style valve covers for BMW R80 and R100. The cover fits equally on left or right. If special 'oil filler version' 040-0954 is used, then 040-0955 is matching for the left side.
This mounting is slightly different than original. OEM used a stud in the cover. This cover is held on by a thru-bolt from the top, but uses a nut in the underside of the fin (similar to original).