Hyfax Part Numbers

[WildMax]

I find 2 Yamaha part numbers for replacement hyfax on a 2007 Mountain Vector, 8FK-47421-00-00 and the other 8FS-47421-00-00. The sled is stock with 151" track. Does anyone know what the difference is between these and which, if not either, would work on the sled? Thanks.

 

[BlgsRX-1mtn]

Not sure but I found different part numbers here http://www.yamaha-motor.com/sport/a...ail/5/427/1784/11685/all/1/6814/0/detail.aspx

Jim