This is what it takes to be a PRO. Performance-driven features like a heavy-duty air cleaner, forged-steel crankshaft, electronic ignition and cast-iron cylinder liner. KOHLER® Command PRO® is the standard for professional-grade power and performance. Features •Quad-Clean™ all-season four-stage cyclonic air filter - effective engine protection for tough-and-dirty conditions •Large-capacity fuel tank means more time working, less time filling •Power or repower your equipment without expensive modifications