I think I saw an older post by GreyWolf that suggested a 2004- 2006 DL650 fuel pump would fit the the 2007 to 2009 DL650 and be good for the high pressure filter bypass. (As in pickup a 04-06 fuel pump to use in the 07-2011 DL650 to use for the bypass as the newer pump was not as suitable for the bypass) To continue on that thought I believe I also read that the early DL1000 pumps would fit the early DL650's .
If I understood correctly that would seem to mean that the DL650 fuel pumps from 2004 to 2011 will physically fit, work, and be swap-able between those years.
Also, it seems to suggest that some of the DL1000's complete pump assemblies may fit as well.
I'm just trying to sort out what the Pool of good used fuel pumps might be to use in a 2009 DL650.