Since joining the club in 2021, Laybutt appeared in four games in his maiden NRL season, including a two-try performance in the Round 26 victory over The Dolphins.
Laybutt debuted for Cowboys in round 13 against Parramatta Eels this year.
The PNG international spent the 2023 season on a train and replacement contract. With impressive performances, both in the NRL with Cowboys and with PNG Kumuls in Pacific Championships, Zac was promoted to the top 30 squad.