This manual covers the Kohler KT series engines, specifically models KT17, KT19 Series II, KT17, KT19, and KT21, manufactured between 1978 and 1984. These engines are known for their robust construction and reliable performance, making them suitable for a wide range of applications where dependable power is essential. Their design emphasizes durability and ease of service, ensuring consistent operation throughout their service life.

The purpose of this manual is to provide comprehensive guidance for the maintenance, troubleshooting, and repair of these Kohler engines. It details essential procedures across various systems, including general information, troubleshooting diagnostics, air intake, fuel system and governor, lubrication, and the electrical system. Additionally, the manual offers step-by-step instructions for engine disassembly and assembly, empowering owners, technicians, and mechanics to effectively maintain and service their engines.