The deal begins next season and will tie Guentzel to Pittsburgh through the 2023-24 season.
“Jake established himself as an impact player for our team from the beginning, especially during 2017 Stanley Cup playoffs,” general manager Jim Rutherford said. “He has become a core player on the team and we are thrilled to get Jake signed long-term with the Penguins.”
Guentzel, 24, has 15 goals and 18 assists this season.
During the Penguins’ playoff run in 2018, he had 10 goals and totaled 21 points in just 12 games.