How are you going to use the pump? Direct couple, side by side, belt and pulleys, etc? If for example if direct drive, then if the engine is turning CCW, then the pump should be turning CW. If using belt and pulleys, then the arrangement of the shafts can be manipulated to turn it in the direction stamped on the pump.
If side by side, then the pump can turn the same direction as the engine. If the pump has to turn opposite the engine, then the shafts will face each other, but off set.
Direction of engine or pump or motor, is determined by looking at the main shaft side of the engine.