This manual covers the Kohler Magnum MV16, MV18, and MV20 Twin Cylinder Engines. These engines are recognized for their robust engineering and reliable performance, designed for a variety of applications requiring dependable power. This document serves as a comprehensive resource for understanding and maintaining these twin-cylinder power units, ensuring their optimal operation and longevity. The purpose of this repair manual is to provide detailed guidance for the service, maintenance, and troubleshooting of the specified Kohler engine models. It includes essential information on routine maintenance procedures, engine removal and installation, fuel system service, lubrication and cooling system maintenance, intake and exhaust system care, electrical system diagnostics, transmission and drive system service, steering and suspension components, and body work. Advanced troubleshooting steps and parts lookup information are also included to assist owners, mechanics, and technicians in effectively managing and repairing their engines.