Did you ever have to go to the parts store and spend a hole lot of time looking at their inventory of hoses trying to find a molded hose with the correct diameter and bends to go from point A to point B. Take a look at the attached 3 files from Gates.The first page is a listing of hoses by dimension and page 2 and 3 show both dimensions and pictures of the shape of the hose. You can usually get a pretty good idea of what might fit by looking at the pictures and narrow down the ones that would most likely fit....It can really save a lot of time and aggravation. The files are large so I had to break them down into attachments but they are in order.