Abstract: A tamper assembly comprising: a motor being coupled to a transfer shaft, rotating the transfer shaft when the motor is actuated. At least two eccentric weights are coupled to the transfer shaft and a tamping foot is rotatably coupled to the transfer shaft. The tamping foot vibrates when said motor is actuated to tamp the asphalt or the stone when the tamping foot is drawn across the asphalt or the stone behind an asphalt paver. Two attachment bars facilitate removable and adjustable attachment of the tamper assembly to an asphalt paver.