In Quito, Termalimex (www.termalimex.com). They do service and carry parts for even the very old KA mixers – mine is from 1965, and they have been admirable service providers.
They have extensive kitchen supply, commercial items, stainless steel pans, vacuum sealer bags, cake decorating supplies, knives, thermometers and more!
Also check with Todo Hogar & Sukasa
Termlimex is a kitchen supply store – they have oodles of great things!