E-One Incorporated (E-One) is recalling certain model year 2015-2016 Cyclone II vehicles manufactured July 31, 2015, to June 12, 2016, 2015-2016 Typhoon vehicles manufactured September 21, 2015, to July 27, 2016, 2015 Freightliner M2 vehicles manufactured November 3, 2015, and 2015 International 7400 vehicles manufactured November 3, 2015. The affected vehicles may be equipped with certain C20 and C21 split-shaft transmissions from Waterous. This transmission sends power to the wheels of an emergency response vehicle or powers an add-on unit such as a water pump used for fighting fires. A component within the shift unit may be damaged and as a result, the operator may not be able to switch the power output.