Hi is your tank IR i think tower hobbies sells all the new IR version that have the new electronic's ..all you need to do is look at the radio if it has 2 speeds for reverse it should be the new versions... also if you need parts e-mail Toy east i always do this they get me any parts i needed even ones they don't sell as parts on there site!

The LEO you show is the old version see radio in photo 1 button for reverese.. new one has 2 buttons