the kds-18
is a great kitchenaid, a lot of the guys here swear it's the best model ever made by hobart. it's the first model to use the upper spray arm and has a redesigned pump and a taller tub than the earlier models. the motor is 1/2 hp. the strongest you can get. it has the heated dry that was taken away on the 19 models, and is much complained about by kitchenaid collectors.
the production date logs that i have show it was produced from 11/76 thru 10/79.
parts are readily available at hobart, pump parts at least and prob from appliance parts houses too. i generally buy directly from hobart here in cinti. when i need seals etc. but i know you can get them.
if you need help with a part i can prob help you or steer you to someone who can. i don't have an 18 model yet but have one waitng for me in akron ohio. i have 2 19's which use the same pump and motor. i recently bought a motor for an 18 off e bay for 30 bucks.
it's a beautiful dishwasher and def one to keep! superba at that! enjoy it, any questions just ask here on the site or e mail me direct.
pete