2010 Kubota B2320 / 40 amp alternator - B2320 kits -HELP!!!

[grahamgl]

40 amp alternator - B2320 kits
There are 2 kits
the 7324 and the 7311
Do you know what one will work on the B2320?
Thanks
Glenn

 

[number two]

They used to be about $200,but no idea which kit fits your tractor.
As reliable as the dynamo is,I'm surprised Kubota hasn't made alternators standard across the board.
Good Luck!