In order to avoid pulling out a frost plug, I was just sold a threaded block heater (part 700000-17550) by my Kubota Dealership. It's maybe 3/4" that is supposed to be installed (acccording to them) at the front right of the block. "You should see a plug that you can just unscrew and screw the heater in" . Not so. After removing most of the tin, looking over engine diagrams and returning to the dealership w/ photos I'm still at a loss. Bottom line is nobody related to Kubota can tell me where this goes even though they're ALL Positive that it's the right part for the job. Any help would be great.