Thank Oak for the two sources.
Duh.. Forgot the real Kubota part number was minus the 'KB' prefix that Cub Cadet uses.
Googling the real Kubota numbers return many more sources...
Placed an order with Kubuta Parts Depot'
https://parts.mbtractor.com since listed items in stock.
Order all four items to compare what are the differences....
[1] 15841-73050 - SEAL, ASY MECHANICAL $11.48
[1] 15841-73550 - BEARING BALL RADIAL12/26 *** $53.35
[1] 15852-73550 - BEARING BALL RADIAL12/26 $26.68
[1] 15852-73050 - SEAL,MECHANICAL ASSY $15.50
Subtotal: $107.01
At checkout, list as non- stock 3-5 days shipping. There policy says non-stock orders will be drop shipped. Will see how this goes.
Have used Messick and Yacht Supply before. I the past Messick orders ship to them and then reshipped to me. Unfortunately Yacht Supply is shutdown due Irma and best wishes for them.
Will post when get the parts.
Thanks to everyone,
Bob G.