If memory servs it's a smallish code 61. Any hydro shop should have or be able to get it. Get the hose off (or cut both end fittings off), get some calipers and start measuring. Gates has an ok web interface, there's probably a good shop within a phone call distance that could walk you through. Hydro stuff is confusing 'cause there are so many different flavors, but it's not complex.
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