The Yanmar YM1720 is a compact utility tractor produced from 1982 to 1983 as part of the YM20 Series. It features a 17 hp liquid-cooled 3-cylinder diesel engine with a displacement of 1.0 L. The tractor offers a 9-speed partial power shift transmission with a 12-speed creeper option, and is available in two- or four-wheel drive configurations with an open operator station. It is a versatile compact tractor suitable for various utility tasks.