Yes it has glow plugs also. Probably ought to install a similar heater grid in the intake on my old 1987 Kubota B9200. It starts cold okay but likes to see about twenty seconds of glow plugs first. Maybe could be wired into the glow plug circuit.
Edit: Anyone happen to know of an aftermarket version of the heater grid?
My guess is it is warm climate people, or they have a block heater. In the cold I want I the help I can get, especially if I am not near a power outlet....