Excavator parts:carrier(1st Level) for Caterpillar E320C * Model:carrier(1st Level) Caterpillar E320C Excavator parts:carrier(1st Level) for Caterpillar E320C * Model:carrier ... ,travel duplicate planet gear assy,1st level travel assy, 2nd level travel assy,1st level swing assy, 2nd level swing assy Available hydraulic motor ...