What is the official name for this part. I want to purchase one for my project. I'm guessing it's considered an insert or union.

Adam

http://s1297.photobucket.com/user/adam_hayward1/media/20170320_164111_zps9jdkla2n.jpg.html?sort=3&o=1

According the partslist it is the: 27-8348 / Oil Indicator Pipe Adaptor

email (option): m.wijbenga@hotmail.com

I was hoping it was a standard type fitting that can be found and purchased. My M24 has one as well for the oil return pipe. I assume all bsa alloy engines use this.

email (option): xeon25@hotmail.com

Jan actually used to make these. I don't know if he still does.

email (option): leonhop3_at_planet_dot_nl