I have the Tiger Tool bearing greasers that I used on my Polaris also and was wondering if they might work.
Just went out and checked, and yes one was a 40 mm but only has one sealing o-ring and a elongated slot, not slotted all the way around like the one bionoicman posted which also has two o-rings. One on each side of the grease dispensing slot.
Will have to give the Polaris ones a try and see if they will work on my Talon.
If not , Thanks bionicman for the link to the right one...DRK