It is the same part Japanese part numbering systems have the last trailing digit being the revision level 20204AG011 is the first revision of 20204AG010. Part 20204AG011 is the alternative to 20204AG010 See below from the OpposedForces exploded views..... gifs upload
Just reread all this, and was struck by the wheel nut torque - 110Nm ! My old Porsche with M14 wheel bolts only calls up 95 Nm - lucky I have a long wrench that makes 95 a piece of p!ss.