101 XD Actuator 21/4" Stroke (5.715 cm) - 12-Volt-5/16" (12.7/40.64 cm) upper & 3/8" (7.62/20.32 cm) lower

The 101 XD Actuator is used mostly with HD, XD, High Performance & Super Strong tabs. 2-1/4" stroke Overall length tip to tip = 11-3/8 inches.