Pole had been free to negotiate with rivals since the beginning of the month but will now remain with the three-time reigning wooden spooners until at least the end of 2027.
The Wellington-born, Melbourne-raised 22-year-old has become a pivotal member of the Tigers' forward pack, missing only two games since making his debut in round 16 of the 2022 season.
In 2024, he averaged career-best numbers for run metres and tackle breaks.
After Stefano Utoikamanu signed with the Storm for 2025, Pole loomed as the most important middle forward for the Tigers to secure for their future under Marshall.
"I'm so happy knowing I'll be here at the club for at least the next three seasons," Pole said.
"Although it's been a tough few years, I've loved the mateship and resilience in the team.
"Now is such an exciting time for us as a club. I just want to keep working hard and continue to improve as a player."
Pole's decision to re-sign shows faith in a Tigers side starved for recent success, but preparing to welcome an array of new talent for 2025.
Four-time premiership-winning playmaker Jarome Luai headlines the inclusions, while Terrell May and Royce Hunt join as reinforcements for the middle forward rotation.
Wests Tigers welcomed their first round of players back for pre-season training on November 4 but Luai's recent duties with Samoa will prevent him joining until the new year.
The joint venture face Newcastle for their first match of the new season.
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