The List
There are 78 4 letter words with U as the last letter. The highest scoring is JUJU at 18 points in Scrabble. 7 carry three or more vowels, which makes them useful for dumping a vowel-clogged rack.
AGLUAITUBABUBAHUBAJUBALUBAPUBEAUBEDUBUBUCHOUCLOUDEGUECRUEMEUERHUFRAUFUGUGENUGURUHABUHAKUHAPUHUHUIGLUJEHUJUJUJUKUKAGUKORUKUDUKUKUKURUKUTUKUZULATULEKULIEULITULUAULULUMASUMENUMEOUMOTUMUMUNAMUOMBUPATUPRAUPUDUPUKUPULUPUPURAGURAKURATURIMURURUSULUSUSUTABUTAPUTATUTEGUTHOUTHRUTOFUTOLUTUTUUNAUVATUVROUWUDUYUZUZEBUZOBUZULU