I could never find any when we had the 20 valve motor. We got them as part of a full gasket/seal set. No doubt you would be able to get them through Toyota, but as for price, I'm not so sure that they would be cheap. I know we got valve springs, etc through Toyota, so they could definitely get these for you. Knowing how thin the valve stems are, I couldn't imagine a heap of motors running seals of the same size, so they might be hard to get aftermarket.
-- Edited by Trekka273 on Tuesday 20th of April 2010 06:41:12 PM