Joining the club are former AmaZulu trio Prince Hlela, Luyanda Hlongwa and Kagiso Senamela, as well as ex-youth international central defender Thapelo Tshilo.
Tshilo spent the past season battling for game-time at Bidvest Wits, after signing in January.
All four join the club as free agents.
Polokwane have had a rude welcome to the Premiership, losing all three of their opening matches, forcing them immediately to go into the market for reinforcement to their squad, which was thin on experience.
KickOff.com has confirmation from the club that all four players have signed, with Hlela and Hlongwa having signed one-year contracts.
The players had a brief assessment by the club before committing.