This is it. OFNA 10250. Designed for 1/8th off road buggies. It uses a 12 volt heavy duty motor (put your hands together like you are holding a bat, that is how big the motor is), like the one you see airplane guys start their giant size engines with. It has room for a 12 volt gell cell as well. OFNA #10253 is the same box, but it also has the power panel, which allows you to run your glow starter off the 12 volt battery instead of a little AA, C, or D battery.