The invention relates to a connection module (11) for a heat exchanger, in particular for a motor vehicle, wherein the connection module is configured to connect the heat exchanger to a component of a fluid circuit and to support a sensor capable of measuring a fluid value. According to the invention, the connection module (11) comprises: at least two attachment parts (19, 21), including a first attachment part (19) that is arranged along a given axis (A) and is capable of forming a mechanical bearing for the component, and a second attachment part (21) capable of supporting the sensor; and complementary assembling means (37, 39), supported by the first attachment part (19) and by the second attachment part (21), enabling the second part (21) to be assembled with the first part (19) along at least two orientations of the second part (21) relative to the axis (A). The invention also relates to a corresponding heat exchanger and heat exchange assembly.