For Xerox® models: (CopyCentre) C118, C123, C128, C133, (WorkCentre) M118, M118i, M123, M128, M133, Pro123, Pro128, Pro133, WC-5222, WC-5225 & WC-5230
Fuser Exit Sensor & Actuator Assembly (Type B version)
Assembly Includes: bracket, sensor, & UPGRADED TYPE B actuator w/ ball bearings
Note that the older version (Type A) had a simpler actuator without the bearing on it... the two actuators are not interchangeable unless you also change the metal bracket which the actuator hangs on. This assembly includes that bracket... so you can replace the whole assembly if the machine has the older kind.
Other related OEM part numbers include: 15K60900, 015K60901 or 15K60901, 815K02550, 815K00710, 604K71430, 015K77950 or 15K77950, 015K79210 or 15K79210