A commodity metering system with multiple assemblies, each of the assemblies comprising an actuator (108, 201-208), a metering element (134, 141-148) and a powertrain (212, 221-228), the powertrain (212, 221-228) is configured to transmit power from the actuator (108, 201 -208) to the metering element (134, 141-148) to drive the metering element (134, 141-148) in rotation about a first axis to meter a commodity at a predetermined rate; the powertrain (212, 221-228) including an actuator output member supported for rotation about a second axis; the powertrain (212, 221-228) including a metering input member that is fixed for rotation with the metering element (134, 141-148) about the first axis; the actuator output member engaged with the metering input member for power transmission from the actuator output member to the metering input member; and the first axis being transverse to the second axis; the actuator (108, 201-208) of one assembly is configured to actuate the metering element (134, 141-148) of the respective assembly independent of the actuator (108, 201-208) of an other assembly actuating the metering element (134, 141-148) of the other respective assembly; the metering element (134, 141-148) and the metering input member of the multiple assemblies are arranged in a cartridge that is selectively removable from the metering system; wherein the cartridge has an engaged position and a disengaged position; wherein, in the engaged position, the metering element (134, 141-148) of the assembly is operably connected to the actuator (108, 201-208) of the respective assembly for power transmission via the powertrain (212, 221-228) of the respective assembly and wherein, in the disengaged position, the metering element (134, 141-148) of the assembly is disconnected from the actuator (108, 201-208) of the respective assembly, characterized in that the cartridge is rotatable about the first axis to move between the engaged position and the disengaged position. the powertrain (212, 221-228) including an actuator output member supported for rotation about a second axis; the powertrain (212, 221-228) including a metering input member that is fixed for rotation with the metering element (134, 141-148) about the first axis; the actuator output member engaged with the metering input member for power transmission from the actuator output member to the metering input member; and the first axis being transverse to the second axis; the actuator (108, 201-208) of one assembly is configured to actuate the metering element (134, 141-148) of the respective assembly independent of the actuator (108, 201-208) of an other assembly actuating the metering element (134, 141-148) of the other respective assembly; the metering element (134, 141-148) and the metering input member of the multiple assemblies are arranged in a cartridge that is selectively removable from the metering system; wherein the cartridge has an engaged position and a disengaged position; wherein, in the engaged position, the metering element (134, 141-148) of the assembly is operably connected to the actuator (108, 201-208) of the respective assembly for power transmission via the powertrain (212, 221-228) of the respective assembly and wherein, in the disengaged position, the metering element (134, 141-148) of the assembly is disconnected from the actuator (108, 201-208) of the respective assembly, characterized in that the cartridge is rotatable about the first axis to move between the engaged position and the disengaged position.