If you find a case that doesnt have a place for orings on the case studsthen it uses self sealing nuts. Dont bother looking around town they'll just look at ya like your a retard if you ask. :lol:  These are on 40hp and early type 3 motors maybe others. Jbugs.com has them seperate or you can buy the whole hardware kit with the correct sealing nuts and original type hardware for $25 beats the empi kit by far. Just FYI as it set my build back a few days when I relized I didnt have any or even no about it.