BTW, they're called lock actuators. There doesn't seem to be anything special about them, or the power window motors, either.
A lock actuator will work on either side. No difference. On the other hand, I had no idea that the power window motors were side-specific. I just installed them.
If it wasn't so cold, I'd go look, but that box is buried at the back of the shed, and would take hours to get to.