This is the same problem us Roadtrek/Hymer guys are having and who bought them, well tried, Thor. Adam at Nations Starter in Cape Girardeau, MO designed and started the GU for Roadtrek and likely designed the GU for Thor. The below is hard plastic hose that moves the coolant hose away from the GU belt.
https://www.nationsstarteralternator...L-p/1641-5.htm
Everyone at Nations Starter are great to deal with and maybe able to help the Tellaro/Sequence van owners. Good luck.
Thor Forums
