The Packers got the win in three sets (25-17, 25-20, 25-19).
Kendall Barnhart led the Packers with eight digs, seven kills and five aces.
Sage Vandenberg added 13 kills and Carle Bruggema chipped in 30 assists, eight digs and five aces.
Fremont will move on to the district championship game on Friday. The Packers are set to take on the Spartans of Sparta at 6 p.m.