Most likely since it's this current year model, you won't find many, but the Mule SX series models are all the same as far as frame fittings/dimensions/fit.
Kawasaki part number is KAF600-025A
Here are some good aftermarkets one from Warn and Moose.
https://www.sidebysidestuff.com/kawasaki-mule-sx-plows-implements.html