Consumer models of engines available from 11 to 25 HP, with Kohler's exclusive features which allow the engine to run quietly and keep maintenance to a minimum Kohler engines consumer engines small engines lawn & garden engines lawnmower engines 4-cycle engines four-cycle engines overhead valve electronic ignition hydraulic valve lifters self-relieving choke carburetor cast iron cylinder liners cast-type oil cooler mechanical fuel pump solenoid shift starter Kohler Command Consumer Series Engines (Vertical Twins)