This is a C051-2 Robinson R44 Belt Tension Actuator that is for sale.
Part number: C051-2
Serial number: 3733
Total time since new: 208.8
Was removed out of a Clipper 2 due to the aircraft needing 2200 hour overhaul. Part is in like new shape.
Call or text Jimmy at 865-719-6478 or JimGMC@hotmail.com