The MCDONNELL & MILLER 344300 Xylem is a high-performance air-cooled diesel engine that is designed for medium-duty applications. This engine is capable of producing up to 344 horsepower and 446 foot-pounds of torque. This engine is also equipped with a variety of features that make it a desirable choice for a variety of applications. These features include a fuel injection system that allows for precise control of fuel delivery, a variable geometry turbocharger that provides increased power and efficiency, and a durable construction that ensures long-term performance.