Found in the KOP this year was 4 “Coupler, Denso moto black, injection molded plastic, 6 tooth” “PN: Denso-6”. We want to buy 8 more of these, but I dont know where to buy them…
As far as I know, there isn’t a common supplier for those couplers. Your best bet is to contact a local veteran team and see if they have some from previous years that they can spare.
For Kit of Parts items, check here.
Unfortunately, if you scroll down to about 3/4 of the way down page 3, it says that the part you are looking for is not available for purchase.
You can either find a similar sized replacement, try to buy some from other FRC teams, or machine your own.