Van Tornhout has signed an 18-month contract and joins Kilmarnock from Cypriot side Nea Salamis.
Kilmarnock boss Kenny Shiels insists the striker will not feature in Saturday’s League Cup semi-final clash with rivals Ayr United.
Shiels said: “We’ve signed Dietar, he’s 6ft 2ins, he holds the ball well and will connect the top end of the pitch for us.
“He moves well with a decent understanding of the game. He’s a big lad so he’ll offer us a different style.
“We’ve become a little bit predictable at times so he’ll give us variety in attack.
“He has played for Roda JC and Sparta Rotterdam in Holland and I was in Europe a few weeks ago watching him play in the Cypriot League.
“His club over there have got into financial difficulties and we’ve got him on a very good meal ticket, it’s not expensive for us.
“But I won’t play him on Saturday. If I bring him in it will affect the morale in our team.
“We’ve worked hard to create a spirit and it can have an adverse affect on the team when you add someone.”
