It's not factory, Evo sells it, it's fairly cheap.
The part that fails on the jk disconnect is the circuit board. Unfortunately chrysler won't sell just that part so the motor is all but useless. I remember reading about someone trying to make a manual control for the motor work but it ended up being more complex than it was worth and not working well. Oh and very long travel JK suspensions still require disconnect links to stop the disconnected sway bar from reversing.
Personal I run the ORO swayloc dual rate with the air powered disconnect. I love it, I get stiffer than stock stability on the road and antirock preformance off road. I can even switch modes for fast fire roads between trails.
I have it paired with an antirock in the rear, the combo is excellent.
—
There must have been a time
when we could have said no.