Cummins unveils ethanol-powered B6.7 engine concept

Cummins unveiled at Agrishow 2025 the concept of the B6.7 ethanol engine, designed to operate with 100% hydrated ethanol. The proposal seeks to demonstrate the potential of biofuel as a viable alternative to the energy transition in Brazilian agribusiness.

With 325 hp of power and 895 Nm of torque, the engine delivers performance similar to diesel. It uses direct injection technology at 350 bar, a cylinder head with dual camshafts and turbocharger, as well as a three-way post-treatment system.

The company focuses on simplicity of maintenance, extended intervals and the use of renewable fuel as a differentiator. Ethanol offers a reduction of up to 68% in greenhouse gas emissions. The concept focuses on agricultural applications such as sprayers, harvesters and other medium-sized off-road machines.

Developed based on the B series, which already has more than 13 million units produced worldwide, the model follows the Otto cycle architecture. The project aims to serve properties with their own ethanol production, regional fleets and operations with defined routes.

According to Cummins, Brazil has ideal conditions for adopting ethanol as an energy solution. The consolidated infrastructure, availability of the fuel and experience in agricultural use favor this route.

The concept is not yet in commercial production, but it is already attracting interest. The company advocates an integrated approach, which involves regulation, infrastructure, technological adaptation and collaboration between industry and producers.