Kubota debuts new engines and technology

Kubota is presenting several new engines and related technology at Bauma 2025 in Munich, Germany, including its advanced 85-kW 3.8 L hydrogen engine, which is scheduled to be used by Japan-based Denyo Corporation in a dedicated portable generator.

Kubota 3.8 L hydrogen engine. (Photo: Becky Schultz)

The hydrogen engine is based on the company’s WG3800 engine with the same size and footprint. The position of the power take-off for the hydrogen engine is the same as the WG3800, which Kubota said ensures a straightforward, simplified changeover option for operators.

Also featured was the 3.3 L V3307-CR-TIE5-SCR engine, a compact EPA/CARB Tier 4, EU Stage V-compliant diesel based on the V3307-CR-T rated 56 kw and torque of 335 Nm. The redesigned and upgraded engine provides 90 kW at 2,400 rpm and 400 Nm of torque at 1,500 rpm, while maintaining the same dimensions.

Kubota 3.3 L V3307-CR-TIE5-SCR engine with Compact Mixer. (Photo: Becky Schultz

A feature of the new V3307-CR-TIE5-SCR is a highly compact selective catalytic reduction system, referred to as a Compact Mixer by Kubota. Its small dimensions allow operators to incorporate the aftertreatment system more easily into machines.

The new 480cc Z482-K on-road two-cylinder engine shown at Bauma was developed for the French company Aixam Mega S.A.S., which manufactures and sells license-free passenger vehicle, on-road quadricycles in Europe. The engine was redesigned to run with a common rail fuel injection system and a passive diesel oxidation catalyst to comply with Euro 5+ on-road emissions regulations, which took effect from January 2025.

Kubota also announced the development of a new engine with a fuel monitoring sensor developed by SUN-A, which can detect the blend of fuel being used in off-highway equipment. The sensor fits inside a fuel filter assembly; it was displayed on a Kubota 3.8 L diesel engine.