Replacing the 365B L hydraulic excavator, the Series II machine delivers 5 percent more engine horsepower and up to 19 percent more lift capacity. The new model retains many of its predecessor's features, but also features improvements to the engine, boom and stick cylinders and bucket linkage; plus new stick and boom options. It uses a 404-net-hp Cat 3196 engine with air-to-air aftercooling. Buckets range from 2.12 to 6 cubic yards. Three boom options and six stick choices are available.