Freshman guard Seth Allen contributed nine points and Pe'Shon Howard had eight points and seven assists for the Terrapins (10-1), who haven't lost since dropping the season opener to Kentucky on Nov. 9. The 10-game run is Maryland's longest since the 2000-01 season and four short of the school record.
After the Terrapins let a 20-point lead dwindle to 69-66, Len missed two free throws with 54 seconds left. The 7-foot-1 center grabbed the rebound of the second misfire, though, and dunked it.
Len scored five points in the opening two minutes of the second half to fuel an 11-4 run that put the Terrapins up 56-36. Faust capped the spree by lofting a 60-foot pass that Wells collected on one bounce before dropping in a layup.
Maryland then went cold while the Seawolves rattled off 11 straight points. Allen ended the Terrapins' 4 1/2-minute drought with a 3-pointer, and Logan Aronhalt followed with a buzzer-beating 3 to make it 62-47 with 12:27 left.
The Seawolves rallied but could not complete the comeback.
Wells scored 12, Len had 11 and the Terrapins shot 64 percent -- going 7 for 12 beyond the arc -- to take a 45-32 halftime lead. Howard contributed six points and five assists.
After Warney opened the scoring with a layup for the Seawolves, Len had three baskets in a nine-point run that put Maryland ahead for good. It was 12-8 before Wells made a layup, a 3-pointer and a three-point play to launch a 16-7 spree.
Maryland hit 11 of its first 13 shots from the floor, including a 4 for 4 performance by Len.
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Colorado State graduate transfer John Gillon has chosen Syracuse, giving the Orange a potential starter at point guard entering the 2016-17 season.
DeSean Murray, who averaged 20.2 points as a sophomore at Presbyterian, will transfer to Auburn to play for coach Bruce Pearl.
Former Kentucky guard Ed Davender, the only Wildcat with at least 1,500 points and 400 assists, has died. He was 49.