The present disclosure relates to a fluid power pack, comprising: a manifold block comprising at least one fluid port; a first housing mounted on the manifold block and enclosing a first tank configured to hold a liquid; an electric motor mounted on the manifold block and disposed within the first tank so that the electric motor is configured to be submerged in a liquid held within the first tank for cooling the electric motor; a second housing mounted on the manifold block and enclosing a second tank configured to hold a liquid; and a hydraulic pump mounted on the manifold block and drivingly engaged with the electric motor, the hydraulic pump comprising a low pressure port and a high pressure port. The high pressure port of the hydraulic pump is in fluid communication with the fluid port of the manifold block and the low pressure port of the hydraulic pump is in fluid communication with the second tank. The present disclosure further relates to a hydraulic system including the fluid power pack and a hydraulic load fluidly connected with the fluid power pack.