A ball joint for a chassis component in the form of a two-point linkage. The ball joint includes a housing and a ball stud fitted and able to be deflected in the housing, as well as a sealing element arranged between the housing and the ball stud, which surrounds the ball stud all round. Deflection movement of the ball stud, relative to the housing, is restricted at least in some areas by the sealing element. The sealing element is attached to the housing by an interlocked connection. The sealing element of the ball joint is attached to the housing by a snap-on connection. A two-point linkage having such a ball joint, and the two-point linkage is a steering rod or a track rod.