They should fit in the holes but you would need to check to see if the wire connectors and voltage levels are the same.
I know that Dakota Digital has 2 different part numbers for their FLT gauges and the first part # would be for 98-03 and the second part # is for 04-13.
Go to your HD dealer and see if the part # for your bike and the 09 bike match if they do then the gauges would work.
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