The Tamiya Grasshopper battery door is not well retained by the chassis so this can result in the door sliding off while driving, and dragging you battery behind you. This is very dangerous and can ruin the battery. This door and retainer will solve that problem. Please see this video for installation prior to purchase as you will need to screw down the retainer.

THIS IS NOT COMPATIBLE WITH THE HORNET. ONE FOR THE HORNET IS AVAILABLE.

043006-03 1-1 G Batt.stl 043007-01 0-1.Stl