MKI MR2 Valve Cover Sealing Washers
[Sealing Wash]

Better design than the originals and much cheaper!! This is why I rely on Twos R Us!

tight fit, must be tapped into place with socket, great design

These washers replace the original Toyota part [90210-06013]. They create a very tight seal, and I would highly recommend them as a stock replacement whenever yours need replacing. They're at a very fair price, too. I would suggest using a 10mm deep socket and tapping them in with that.

Bit of a challenge to get on the posts, but work well once on.