The Sharks confirmed the signing of Springbok hooker Bongi Mbonambi on Tuesday.
The 30-year-old will once again be a team-mate of Springbok captain Siya Kolisi who recently also made the move from Cape Town to Durban.
Mbonambi, who boasts 36 Test caps, had been on the books of Western Province and the Stormers since 2015.
Prior to that, the 2019 Rugby World Cup winner was contracted to the Bulls between 2012 and 2014.
Mbonambi will compete for a starting spot at the KwaZulu-Natal side along with Fez Mbatha, Dylan Richardson and Kerron van Vuuren.
The Stormers recently confirmed the return of former hooker Deon Fourie to the union and the resigning of Scarra Ntubeni.