The manufacturer is Hella and the basic part No. is 6NW 008 412.
Here is a pic of said actuator. I have not taken one apart to confirm though.
hella_21.gif 63.48K
3 downloadsHere is a link to a tester for unit and a typical operation.
http://tube.7s-b.com...controller.html
This actuator is also used by Garrett as a VNT turbo actuator.
There are a bunch more of videos showing and discussing operation. Thought you might want to dig a little.



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