LIKE NO OTHER. You work your tail off 12+ hours a day. It's time to hold your engine to the same standard. With extended maintenance intervals and fuel-efficient operation, KOHLER Command PRO engines work as hard as you do. TOP FEATURES Long life - Hydraulic valve lifters are oil-pressurized, ensuring that push rods stay in constant contact with the rocker arms. OHV design - Overhead valve technology provides greater volumetric efficiency and a higher compression ratio. Oil coolers - Integrated oil coolers extend oil-change intervals and maintain low temperatures. Reliable starting - Kohler Command PRO® electronic ignition system generates a stronger spark at low cranking speeds. Sleeve bearings - Extra-large sleeve bearings support heavy loads in commercial and industrial environments. Air filters - High-efficiency, heavy-duty air filters provide protection from debris and ensure longer service intervals.