ENGINE CRANK PULLEY STRUCTURE

An engine crank pulley structure A disposed at a vehicle front side of a longitudinally mounted engine includes: a front pulley 34 that transmits crank rotational force to the water pump 8 via a belt 7; a rear pulley 38 that is disposed at a vehicle rear side of the front pulley 34 and transmits crank rotational force to a compressor 10 via a belt 9; and a connecting portion 39 that connects the front pulley 34 and the rear pulley 38, the connecting portion 39 crushing and deforming in a vehicle front-rear direction as a collision load toward the vehicle rear side is applied to it. An outer diameter of the front pulley 34 is smaller than an inner diameter of the rear pulley 38.