PA-6104 Standard Features Governor, Hydra-Mechanical Thermostats and Pump Housing Jacket Water Pump, Gear Driven, Centrifugal, R.H. Engine Specifications - CAT 3406 DITA 2-1 Rev: 8/00 - of 1 245119 Description: Caterpillar 3406 DITA Mobile Equipment engine, rated at 400 HP 2100 RPM intermittent.