Abstract: A reversible self-propelled plate compactor which includes at least one motor driven vibrator assembly, a housing for each vibrator assembly is mounted to one end of an arm, an opposite end of the arm is attached to a tamper plate by a flex mounting members, the forces generated by the vibrator assembly are directed to the tamper plate only by way of its associated arm and the flex mounting members, the direction of the self-propelled travel being irrespective of the direction of rotation of the shaft of the vibrator assembly.