Seeley and Vaughn also had six assists apiece and combined for seven steals as the Titans (11-8, 4-3 Big West) snapped a two-game losing streak. Sammy Yeager added 16 points and eight rebounds for Fullerton, and Alex Harris had 10 points.
The Aggies led by eight points early in the second half before Fullerton took the lead, 74-73, on Yeager's 3-pointer with 9 minutes left. Vaughn's three-point play with 7:46 remaining put the Titans up for good, 76-74.
Both teams shot the ball well. The Titans made 55 percent of their attempts, including 12 of 23 from beyond the arc, while UC Davis converted 51 percent.
Mississippi State freshman guard Malik Newman will withdraw from the NBA draft, but sources told ESPN he might explore other opportunities besides returning to Mississippi State.
Seton Hall sophomore Isaiah Whitehead will stay in the NBA draft and not return for his junior season.
Washington State's trio of Josh Hawkinson, Conor Clifford and Ike Iroegbu have withdrawn from the NBA draft and will play their senior season with the Cougars.