This is a replacement  oil pump gear for the Rotax 123 engines. 

I have checked the design and it is accurate enough (see pics). Of course this is an engine part so it has to be printed in an appropriate material. I guess CF-nylon or PP. DO NOT PRINT WITH PLA OR PETG.

At the time I haven't tried it to a running engine, I have gust test fitted it to check if the design works.  It may also work on other 2 stroke engines (like Rotax 122 or Cagiva Mito/Raptor/Supercity) but i haven't tested it yet.

OEM codes:

AP0634030