I ordered the wrong part! On the order screen you see the picture of the universal hitch pin, which looks exactly the same as the smaller hitch pin for the mhs duo, which Is another part number where you have to select. However the selection portion it is not really obvious and it does not make you pick a selectio, it defaults to the universal pin. My suggestion is to have an empty select option and the picture show all 4 types so you are forced to make a selection. Having it auto select the pin that looks just like another one makes for a large capacity for mis ordering.