Abstract: Piston cooling jet devices, or spray jet devices, for spraying oil onto an underside of a piston are provided. The spray jet devices may include two or more orifices such that oil is directed at an intake side portion and an exhaust side portion of the piston when the spray jet devices are selectively coupled to an engine. The spray jet devices may further include a valve to selectively control the flow of oil through a fluid passageway to the two or more orifices. For example, a check valve may be positioned and located such that the spray jet devices do not spray oil when the pressure of the oil system is less than a threshold value.