A surgical loading unit for use with a handle assembly includes an elongateouterframe, an end effector mounted to a distal end of the outer frame, a drive atleast partiallydisposed within the outer frame and operatively coupled to the end effector,and beingadapted for longitudinal movement through a plurality of sequential firingstrokes to operatethe end effector, and a rotatable counter mounted to the outer frame andadapted for rotationalmovement about the longitudinal axis. The rotatable counter has visualindicators forproviding visual indicia corresponding to a number of firing strokes completedby the drive.A counter actuator is mounted to the drive and dimensioned to engage therotatable counter tocause rotational movement of the rotatable counter through an arc segment ofrotation duringeach firing stroke of the drive. A cam actuator is mounted to the drive anddimensioned tooperatively engage the counter actuator to cause release of the counteractuator from therotatable counter upon longitudinal movement of the drive through eachsuccessive returnstroke.