R170 engine rocker cover

[mwdavey]

Quick question - need to replace the rocker cover - R170 230 kompressor 1998. Been offered a few but the part numbers differ slightly in the last digit. Are they all the same? I know some have a sensor on the side opposite where the supercharger is - mine doesn't - but the ones also without still don't match on part no.

 

[optimusprime]

Why no just use the dealer, and give the parts guy the vin -100% right first time .