The Ebay item # is a selector buttom only (you need one)
But you also need the selector:
Fortunately, the same seller has both, assembled (above).
The selector assembly number on Ebay is: 390163536810
http://cgi.ebay.com/ws/eBayISAPI.dll...m=390163536810
The seller has a "buy-it-now" price on the selector assembly, that you are well advised to click on.
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