After dealing with our local Yamaha dealer, I was left frustrated and a quote for $200 and change. Parts included 4 front bearing and 2 outer seals for a '90 Big Bear 4x4. I did a little research and found our local bearing supply house (BC Bearings) carried identical parts, excluding the Yamaha paper wrap. The following numbers are based on industry standard number which can be cross-referenced.

Front Bearings Yamaha Part # 93306-00612-00 $38
Koyo Part # 60062RSC3GSR $11.38

Outer Seals Yamaha Part # 93102-38383-00 $9.80
Federal Mogul # 38X55X7 $4.80

Inner Seals Yamaha Part # 93103-38417-00 $9.80
Federal Mogul - available but on B/O

All prices are in Canadian dollars. It really should be a crime when a company sells you a product then become anti-competitive in its parts. Since common parts on most machines are not manufactured by the same company, really is it their parts? Check your parts from your dealer next time; you probably be surprised at who actually make the parts.