realoem's depiction is innacurate. I believe what they're actually showing is an E30 or 318ti bushing. For the US spec E36, there is only 1 part number, which is the 2nd one on realoem's list (33-32-6-770-786). The other part number may be what it's referred to in other countries, but it should be the same exact part. There shouldn't be a difference, but don't quote me on this- I'm not sure what the story is with that other number. As I mentioned, whoever you buy this from should be able to tell you which is correct.
If anyone else out there knows more about this, please help us out