MAXIMUM POWER. MAXIMUM RESULTS. 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 Hydraulic valve lifters - Oil-pressurised, ensuring push rods stay in constant contact with rocker arms for long life. 2 barrell Carby - Improves throttle response and increases fuel economy. OHV (Overhead Valve) design - Provides greater volumetric efficiency and a higher compression ratio. Oil coolers - Integrated oil coolers extend oil-change intervals and maintain low operating 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 protect from debris and ensure longer service intervals. Highly efficient - Saves significantly on fuel, with less downtime for refuelling For all applications - Suitable for a wide range of equipment including aerators, air compressors, cement mixers, and concrete trowels..1.4375" shaft Multi-Stage Air Cleaner - Heavy duty, fully industrial top-mounted air filter for dusty engine applications Warranty - 3-year unlimited-hour limited commercial warranty