It looks like your 2021 Entegra Coach Ethos Motorhome is on a ProMaster chassis so the Thule Elite Van XT 2 Bike Rack for Ram ProMaster Rear Door # TH302013 would be what you have. This means you need the M5 Hex Key # 853-0930.
This rack doesn't come with an Allen Key for whatever reason which is why the dealer wouldn't have given it to you. view full answer...
Since your 2023 Entegra Coach Ethos Motorhome is built on a Ram ProMaster 3500 chassis you need the WeatherTech All-Weather Front Floor Mats # WTW482. These come with nubs and 3M adhesive to secure the mats to the floor of your motorhome. view full answer...