Earlier this month, Hawaiian took delivery of its 18th A330-243. N373HA (c/n 1530) is named Kūkalani‘ehu, after the constellation Aries. The delivery flight from TLS arrived at SEA, on June 17th, as HAL9975.
On a side-note, the registration N371HA belongs to a privately owned Bombardier Challenger 300. Searches for N372HA shows it once belonged to a Shorts 330 that flew with Hawaiian back in 1979.