At Howland, Bethany Heald scored a goal in each half, giving her 20 on the season, to power the Howlers to victory.
Brittany Moon and Logan Tozier tallied second-half goals for Penobscot Valley (12-1-1). Becky Bowers and Kayla Dube each contributed assists. Sami Ireland stopped 1 of 3 shots for her ninth shutout.
Margaret McDonald made 11 saves on 22 shots for Bangor Christian (7-7).