What year did wheel horse stop producing single cylinder 16 h.p automatics?

[608KEB 796]

I was wondering when Wheel Horse stopped production on the 16 H.P. kohler single cylinder, with a hydrostatic transmission?

[TT-(Moderator) 1,162]

The last one I can think of would be a C-165.

The Toro MPV shows 1981 as the last year of production.