Engine Characteristics: Liquid cooled 4 cylinders in-line engine Naturally aspirated and turbocharged Low fuel consumption Compact and powerful Silent and clean exhaust gas Durable and reliable Convenient one side maintenance Model TPG16 TPG25 TPG35 TPG50 TPG63 Frequency (Hz) 50 Rating Standby (kVA) 17.6 27.5 38.5 55.0 68.7 Prime (kVA) 16.0 25.0 35.0 50.0 62.