You can do a google search on the product names. There are tons of sites claiming to sell guine Honda parts. I would go to AutoZone and use the database there to buy parts. You may be able to save a buck or 2 with online shopping due to no sale tax, but I would rather support a local business and knowing what I am paying at the purchase time instead of praying that I don't get ripped off.

Honda dealership should be the last place to shop for parts.