I get mine from Ali Express or off ebay. They take a while to get here, but do in the end.
There is also a 8 tooth that is used in Mini racers that is used in some of them. Has a different end too it.
![[Image: Screenshot-2020-01-07-US-0-71-20-OFF-EWS...us-8-T.png]](https://i.postimg.cc/BjDTJ38L/Screenshot-2020-01-07-US-0-71-20-OFF-EWS-30-Pcs-0-5-Modulus-8-T.png)
These are in some the engines where the engine is screwed into the frame from the inside. Emily's tender, Murdoch's tender and trains like Duncan, Dennis etc.
There is also a 14 tooth cog on some engines for the Axle drive cog on some engines.
Just make sure you get the right inside hole. Motors are 2mm and axles are 2.5mm.
There is also a 8 tooth that is used in Mini racers that is used in some of them. Has a different end too it.
These are in some the engines where the engine is screwed into the frame from the inside. Emily's tender, Murdoch's tender and trains like Duncan, Dennis etc.
There is also a 14 tooth cog on some engines for the Axle drive cog on some engines.
Just make sure you get the right inside hole. Motors are 2mm and axles are 2.5mm.
![[-]](https://www.blueplastictracks.org/images/collapse.png)