Part no. Y0GT 10000
I can get one on Ebay that's packaged with an adaptor plate for about 22 or 23 bucks from someone who looks to be a Chinese drop shipper (judging by the delivery time) who says they're in Australia. The part seems to be somewhat of a rare item as it's out of stock in many places. I'd rather get one locally if possible. The guy at my LBS said he had one but when he looked for it he couldn't find it.
If anyone knows an online store that's good for that sort of thing I'd appreciate it if you chime in.