The Isuzu open GenSet Power Units are Tier 4 Certified. The 4H Series—5.2 liters, 4 cylinders, 127.5 kW (171 hp) at 1,800 rpm—can save time, money and resources because they are pre-tested and are more than 90% validated, for generator- and alternator-end manufacturers. These units help put standby power solutions into customers’ hands faster for multiple generator applications. The Isuzu Tier 4 Certified, 4J Series—3.0 liters, 4 cylinders, 70.8 kW (95 hp) at 1,800 rpm—and the new 4H Series open GenSet Power Units provide the same workmanship that Isuzu is known for. They are eco-friendly and durable. They also provide quiet operation and low noise, vibration and harshness performance. These engines come with a 5-year/5000-hour warranty. They are designed with selective catalytic reduction over-the-flywheel and built with common components for multiple configuration options, including adjustable skid base cross members for bolt-on flexibility.