ENGINE COOLING DEVICE

An engine cooling device includes: a block lower portion that is a lower portion of a cylinder block; a block upper portion that is an upper portion of the cylinder block; a cylinder head of the engine; an exhaust cooling portion that cools an exhaust gas of the engine; a radiator that dissipates heat of a coolant; a first path that bypasses the radiator to cause the coolant to circulate through the block lower portion, the block upper portion, the cylinder head, and the exhaust cooling portion; a second path that bypasses the block lower portion to cause the coolant to circulate through the radiator, the block upper portion, the cylinder head, and the exhaust cooling portion; and a flow rate control mechanism that increases a flow rate of the coolant flowing through the second path with respect to a flow rate of the coolant flowing through the first path.