Prop Danny Fualalo has signed a two year contract extension that will keep him at the Canterbury Bulldogs until the end of the 2019 season.

The hard running forward, who has represented both the NSW Under 18's and NSW Residents sides, and came through the Bulldogs' system, starting with the SG Ball team has been given plenty of minutes this season coming off the bench to replace Aiden Tolman and James Graham.

The 22 year-old originally made his first grade debut for the Bulldogs against Manly in 2015.

Bulldogs Chief Executive Raelene Castle saw the signing as a boost for the squad's depth moving forward.

"Danny has shown himself to be a tough, no nonsense forward who has provided excellent minutes off the bench all season, in addition to starting when we have needed him to," Castle said.

"He has handled the step up to first grade well and we are confident that he can continue to be an excellent impact player in the coming seasons."