Product Overview The junction box is what houses the connections for the throttle, on/off assembly and controller. It click into place behind the front wheel. Product Videos Videos Hide Videos Show Videos Cleaning the Junction Box (J-Box) Connections - TravelScoot Mobility Scooters In this video, Tony shows how to safely remove the junction bo... Reviews (1 review) Write a Review 1 Review Hide Reviews Show Reviews 5 junction box cover Posted by sp on 20th Jun 2023 My original broke after 9years and this replacement fit perfectly. It was easy to put on, my husband did it so fast. It seems to be exactly the same as the original.