A suitable replacement oil seal for the KR1 & KR1s balance shaft.
The original seal has an outer lip to help location which this substitute seal does not have but it works fine.
This seal is also made of a superior material (FKM) also know as Fluro-Elastomer.
Commonly known as the registered brand name " Viton".
So if you have a leaky balance shaft seal then this is the best alternative out on the market to use.