Washington & Jefferson out-rebounded Kean by a 65-44 margin and limited the Cougars (4-7) to 23 percent (18-of-77) shooting.
The Presidents (9-2) rolled out to a 20-9 lead in the first 10 minutes as junior point guard Dayna Greenfield (Pittsburgh, Pa./Allderdice) hit a pair of three-pointers and Sulkowski added three baskets.
Kean closed to within 27-26 with 53 seconds remaining in the first half, but junior center Sheana Malyszka (Pittsburgh, Pa./Fox Chapel) converted 1-of-2 free throws with 14 seconds left to make it a 28-26 halftime advantage.
Brittany Cleveland tied the game 20 seconds into the second half, but a 16-6 W&J run gave the Presidents the lead for good. Sulkowski scored eight points during the stretch for Washington & Jefferson.
W&J extended its lead to as many as 20 points (61-41) late in the second half and cruised to the 15-point triumph.
Sulkowski made 12-of-24 shots and added two steals to lead the Presidents. Junior forward Amanda Stanonik (North Versailles, Pa./East Allegheny) added seven points and 11 boards, while Greenfield and junior forward Lauren Slampak (Uniontown, Pa./Laurel Highlands) both totaled seven points, seven rebounds and two assists. Washington & Jefferson shot 37 percent (24-of-65) and committed a season-high 29 turnovers.
Cleveland led the Cougars with 12 points and six rebounds off the bench. Tahnisha Barge added 11 points and seven boards. Kean also committed 22 turnovers.
The Presidents will now take on 10th-ranked Messiah in the opening game of the Elizabethtown Tournament next Friday (Jan. 7) at 6:00 pm.