Many of the parts that folks sell are from AZUSA Engineering. Do an internet search for them and download a catalog. Then find a dealer near you. Northern Tool is one such dealer, so are many of the suppliers in our links section. If you see a vendor list the manufacturers part number and it is a AZxxxx chances are it is in the AZUSA catalog. Be aware that just because it comes from 'famous vendor.com' and it costs more, it may still be an AZUSA part the 'not-so-famous-vendor' is selling for less. Do your home work and save a few bucks.