Crusaders head coach Iestyn Harris said he was thrilled to sign a player of Tansey’s quality.
“Jordan is a very versatile player, he can play pretty much anywhere across the back line, as well as hooker and he adds real class to this squad. He’s a very skillful player that will give our attacking game that extra bit of potency.
“He’s still a young guy and I’ve spoken with him about what he wants to achieve here at Crusaders. He wants to get back to playing at the highest level and showing everyone what a great player he can be.”
He featured 24 times for Hull last season but was dropped on two occasions for breaching club discipline.
His contract at the KC Stadium was terminated after a further breach of the club’s code of conduct earlier this year that saw him left out of the squad for the pre-season friendly with Castleford.
Tansey is expected to go straight into Crusaders squad for the match with Castleford on Sunday.