The global shift towards sustainable energy sources is propelling the expansion of hydrogen-powered internal combustion engines. Governments worldwide are enforcing stricter emission regulations, prompting industries to seek cleaner fuel solutions. Hydrogen-fueled engines are becoming popular in heavy-duty applications due to their reliability, high performance, rapid refueling, and extended operational range, making them ideal for long-haul transportation and industrial use. Investments in hydrogen infrastructure, including fueling stations and production facilities, are accelerating market adoption. Companies are integrating hydrogen technologies to align with sustainability goals and operational efficiency. Market segmentation based on combustion technology shows High-Pressure Direct Injection as the dominant method, especially in commercial vehicles. Europe leads the market, with significant investments and policy frameworks promoting sustainable energy solutions. Despite challenges like high production costs and storage issues, hydrogen-based engines are expected to revolutionize multiple sectors, particularly in construction, logistics, and agriculture. The market forecasts a significant rise in demand for hydrogen engines in lower horsepower categories as nations intensify efforts to achieve carbon neutrality. Despite challenges, hydrogen-based solutions are crucial for achieving carbon neutrality, playing a vital role in shaping the future of transportation and industrial applications.