Opener Shane Watson top-scored with 76 as Australia continued to dominate West Indies during a convincing five-wicket victory in the fourth one-day international at the Sydney Cricket Ground on Friday.
Kieron Pollard earlier hit a defiant unbeaten century to haul West Indies almost single-handedly to 220 all out but it never looked like being enough and the hosts took a 4-0 lead in the five-match series with 31 balls to spare.
Watson scored a century on his return from injury as Australia wrapped up the series on Wednesday but his innings was not as assured on Friday and he had a couple of lives before departing, caught behind off the bowling of Tino Best.
Paceman Best returned later to dismiss Australia skipper Michael Clarke (37) in similar circumstances with the scores level, which left Glenn Maxwell to push the winning run through the covers.
Left-arm paceman Mitchell Johnson (3-36) ripped through the West Indies' top order on a bright, sunny day at the SCG and for a while it looked like Australia might crush the visitors.