Ah, well I wasnt sure as the part #s for the OEM replacements change for 1999+ XJs, so I thought it was a different starter. Maybe it is just made by a different company .
Ayuh. Apparently, all the changes to the 4.0 block over the years were strictly internal - NVH upgrades, main girdle, and cylinder wall thickness changes. The external casting stayed the same - the 2005 4.0 probably still has the unmachined boss for the RENIX knock sensor!