Water-cooled type engine cooling apparatus and transmission oil cooler module

A water-cooled type engine cooling apparatus includes: an oil cooler that circulates cooling water flowing out of a water-cooled type engine; a water temperature detection unit that detects temperature of the cooling water; a switching unit that switches the oil cooler from an operating state to a halt state, and vice versa; and a switching control unit that controls switching of the switching unit. The switching control unit controls the switching unit to switch the oil cooler into the halt state when the temperature detected by the water temperature detection unit is lower than a preset temperature, and controls the switching unit to switch the oil cooler into the operating state when the temperature detected by the water temperature detection unit is not lower than the preset temperature.