13 pin trailer connector holder adapter

thingiverse

I wanted to have a plug holder for the 13-pin plug of my old caravan trailer, which originally had a 7-pin and an accodidng 37mm hole to fit it in. I remixed @cwetto's holder to fit my needs. I made it out of TPU so that it can tightly fit into the hole. You actually need some force to plug it in. It won't work with non-flexible materials.