[chrisguyw]

So is that a 4001?

Have you simply soldered the power wires onto the two tabs?

What car is it in?


So many questions...so much time to waste!

That is a JK "Hawk".......and like your  ProSlot, it comes in a few variations, and yes, you solder the leads directly to the tabs. 
Both the "HawK and the ProSlot "Euro" are widely used in the lower/mid  levels of commercial track racing.


Cheers
Chris Walker