How do I buy them? Just compare what you take out? Are there metric and OEM sizes?
i.e. The parts manual lists the o-rings for the dip-stick as: OR 15, 3x2, 4 and Silikon 514? Can I just go to NAPA and ask for this and they'll know what I'm talking about?
Todd
Yes they come in Metric and Imperial sizes.
Yes you can get "Some" from Napa depends upon the dealer and bloke behind the counter. Remember some guys don't read too well others cannot use a vernier to measure the O rings so frustration might set in!
Your best bet is to seek out a bearing/seal stockist who will want to know whether you want the O ring in Neoprene, Viton, or Buna, for the most part. Generally for a Pinz you will need Neoprene.
Happy hunting
Dennis