Yanmar Introduces 59-Horsepower Turbocharged 4TN86DHT Engine for Industrial Equipment Applications

The compact turbo engine combines proven Yanmar reliability with maximum power and torque

ADAIRSVILLE, GA – June 10, 2025 – Yanmar America Corporation today announced the launch of its innovative 4TN86DHT engine series, featuring three models designed to meet diverse industrial equipment application requirements. The new lineup includes the base 4TN86DHT-XNYEM model, alongside optional power pack models, such as the 4TN86DHT-XNYEM-PIH-P and the 4TN86DHT-XNYEM-PIH-S.

The 4TN86DHT series features robust 4-cylinder, 2.09-liter (127 cubic inch) displacement engines, delivering an impressive 59 horsepower (44.0 kW) output while maintaining exceptional fuel efficiency at 3.37 gallons per hour (12.8 liters/hour). Operating at a rated speed of 2,500 RPM, the engines utilize turbocharged and intercooled aspiration, combined with common-rail direct-injection fuel delivery, for optimal performance across a wide range of operating conditions.

Built on Yanmar's proven TNV design foundation, these engines incorporate advanced Final Tier 4 and EU Stage V emission control technology without compromising the reliability and torque that has made Yanmar a trusted name in the industry.

"The 4TN86DHT represents our commitment to delivering sustainable solutions that meet tomorrow's environmental standards today," said Frank Johnson, Division Manager, Industrial Engines Division. "We've proven that operators don't have to sacrifice performance for compliance. Through advanced vibration reduction and high-strength construction, these engines handle demanding applications while our combustion technology delivers better fuel control, reduced emissions, and improved efficiency to help meet our customers' needs."

The additional models with power packs include the 4TN86DHT-XNYEM-PIH-P with a pusher fan and a 4TN86DHT-XNYEM-PIH-S with a puller fan. A puller or pusher fan combined with the diesel engine helps improve cooling efficiency. Puller fans benefit from equipment running at lower speeds and higher temperatures, while pusher fans are more effective at higher speeds. These models are available for different equipment designs depending on the application.

As with all Yanmar engines, industrial equipment manufacturers who choose the 4TN86DHT benefit from Yanmar’s engineering services which will collaborate to customize engines according to the specific machinery requirements and product vision of the original equipment manufacturer (OEM).

The 4TN86DHT-XNYEM and models with power packs are available for purchase today. To learn more or speak with Yanmar’s sales team, visit https://yanmarengines.com/4tn86dht-xnyem/.