The Wildcats are now 13-8 overall and 6-5 in the Heart of America Athletic Conference, while Missouri Valley falls to 9-14 and 4-7 in the conference.
Baker led 38-27 at the break and the contest only featured three ties and two lead changes, all within the first 12 minutes of the game.
Todd Eils and Corey Anderson each added 10 points and the 'Cats nailed seven three-pointers.
Baker's defense held Mo Valley to 18 turnovers and collected 11 stealas, Jordan Honore led the team with four steals.
Steinlage was just one rebound away from a double-double with nine rebounds, and Julian Mills led Baker with four assists and added seven points.
Baker picked up the season sweep over the Vikings with the win and will now take on Graceland University this Thursday, Jan. 31 at 5:30 p.m. at the Collins Center. Baker will also look for the season sweep over Graceland on Thursday, as they defeated the Yellowjackets 63-58 back on Jan. 12.