Kohler 20 KW Generator Set Assiter Auctioneers Kohler 20 Kw Generator Spec Sheet. 4.5/5 (6,764) Kohler 20 KW Generator Set Assiter Auctioneers 4.5/5 (6,764) 4.5/5 (6,764) 4.5/5 (6,764)