Just wanted to share that I found the replacement sight glass \ oil level gauge if someone needs this. Of course I found myself in this situation once I discovered this was "not a replaceable part" in the diagrams. After researching and measuring the damaged original, i found this 25mm seal is used by many brands and models. The following pics show the original with Acs H4 LG12-2 HS marking, the replacement seal installed in the case cover, and the part no. of the package.
Hope this helps
Hope this helps
