Mazembe had quickly fought their way back to parity after losing 2-0 in the first leg in Tunis last weekend as Cheibane Traore and Mbwana Samata put them 2-0 up in the first 23 minutes.
However, Tunisian international Ben Youssef's late goal secured the trophy for Sfaxien, coached by former Dutch World Cup captain Ruud Krol.
The Confederation Cup was launched in 2004 when the African Cup Winners' Cup and Confederation of African Football Cup were combined. Sfax were winners in 2007 and 2008 and runners-up in 2010.
- Sports & Recreation
- Mbwana Samata