Bearing cover seal

Hi all. Ive been looking to replace a seal thats leaking oil. Only problem is i cant figure out who sells them. Its a seal for a bearing cover. Its located behind the plate that covers the drive sprocket and chain. The picture shows the part that i need the gasket for. Anyone know where to find it?

And this is for a 1980 kz750ltd

I think if you really look at it you will find an o-ring on that cover.

Yes, there is an O-ring on the cover. Available anywhere that sells OEM Kawasaki parts. There are literally hundreds of sources (dealerships).
P/N 670B3046 "0" RING, 46MM

www.partzilla.com/parts/search/Kawasaki/...+50-E1%29/parts.html

I got one of those o rings just a couple of months back. Went to my local small town kawasaki dealer and asked them to get me the part # and picked it up the following week.
Easy