'71 Yamaha SS433 Seal ??

[sledder1]

Can anyone clarify the correct part number for the Mag side seal on a 1971 Yamaha SS433.
Thanks,
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[Maim]

looks like you need #21 but the parts list is not all in there. might have to call port yamaha.

 

[Yamaha Nutz]

1405 is the winderosa part# same as srx 440 and gpx