The Springboks continue their preparations for their season opener against the Barbarians next Saturday.
Their match against the BaaBaas (15:00) will be preceded by a clash between the SA 'A' team and Zimbabwe (12:00) at the Nelson Mandela Bay Stadium in Gqeberha on 20 June.
The 28-year-old former Junior Springbok lock, who has been a central figure in the Stormers pack in the United Rugby Championship this season, will replace Salmaan Moerat, who has been released from camp due to injury.
Van Heerden earned his 50th cap for the Stormers this season, while he also represented the Bulls, Sharks, and Exeter Chiefs earlier in his career.
Phepsi Buthelezi and Carlu Sadie, who were called up to the squad on Monday, meanwhile, have already reported for duty.
Springbok coach Rassie Erasmus and assistant coach Mzwandile Stick, who will steer the SA 'A' team, will name their matchday squads for the respective clashes next week.
Injured Springboks flank Kagga Smith has backed the impressive Paul de Villiers to continue improving and says healthy competition for places in the team keeps everyone at their best.
Springbok scrumhalf Cobus Reinach is ready to prove he hasn't lost his edge when he runs out in the green and gold against Wales in Round 3 of the Nations Championship on Saturday.
Young flyhalf Vusi Moyo, who is one of four players set to make their Springbok debut in Durban on Saturday, was in awe about earning his first Test cap.
Springbok head coach Rassie Erasmus continues his policy of mass squad rotation in the Nations Championship with 10 changes to his starting XV for the Test against Wales, including four players set to make their debuts.
