A heat exchange device configured for being installed on the perimetral seat of a cavity of an engine block of an internal combustion engine, said cavity being in fluid communication with the liquid coolant of the engine, said heat exchange device being further configured for being housed in said cavity, said heat exchange device further comprising: - a structural element which in turn comprises a first support (1.2) and a second support (1.3), and - a bundle of heat exchange tubes, wherein - the first support (1.2) comprises a first internal chamber (1.2.1) which is in fluid communication with the inside of the exchange tubes at one of the ends of the bundle of tubes; and - the second support (1.3) comprises a second internal chamber (1.3.1) which is in fluid communication with the inside of the exchange tubes at the opposite end of the bundle of tubes, characterized in that the structural element further comprises a plate (1.1), wherein: the plate (1.1) has an inner face and an outer face, the inner face configured for being oriented towards the cavity, and wherein said plate (1.1) comprises on its inner face a seat configured for resting on the perimetral seat of the cavity of the engine block; the first support (1.2) is located on the inner face of the plate (1.1); the second support (1.3) is also located on the inner face of the plate (1.1); the bundle of heat exchange tubes is located on the side of the inner face of the plate (1.1), an end of the bundle of tubes fixed in the first support (1.2) and the opposite end of the bundle of tubes fixed in the second support (1.3), the first internal chamber (1.2.1) is in fluid communication with the outer face of the plate (1.1) through a first opening (1.2.2) of said plate (1.1) and, the second internal chamber (1.3.1) is in fluid communication with a recirculated gas intake opening of the engine block. - a structural element which in turn comprises a first support (1.2) and a second support (1.3), and - a bundle of heat exchange tubes, wherein - the first support (1.2) comprises a first internal chamber (1.2.1) which is in fluid communication with the inside of the exchange tubes at one of the ends of the bundle of tubes; and - the second support (1.3) comprises a second internal chamber (1.3.1) which is in fluid communication with the inside of the exchange tubes at the opposite end of the bundle of tubes, characterized in that the structural element further comprises a plate (1.1), wherein: the plate (1.1) has an inner face and an outer face, the inner face configured for being oriented towards the cavity, and wherein said plate (1.1) comprises on its inner face a seat configured for resting on the perimetral seat of the cavity of the engine block; the first support (1.2) is located on the inner face of the plate (1.1); the second support (1.3) is also located on the inner face of the plate (1.1); the bundle of heat exchange tubes is located on the side of the inner face of the plate (1.1), an end of the bundle of tubes fixed in the first support (1.2) and the opposite end of the bundle of tubes fixed in the second support (1.3), the first internal chamber (1.2.1) is in fluid communication with the outer face of the plate (1.1) through a first opening (1.2.2) of said plate (1.1) and, the second internal chamber (1.3.1) is in fluid communication with a recirculated gas intake opening of the engine block. - a bundle of heat exchange tubes, wherein - the first support (1.2) comprises a first internal chamber (1.2.1) which is in fluid communication with the inside of the exchange tubes at one of the ends of the bundle of tubes; and - the second support (1.3) comprises a second internal chamber (1.3.1) which is in fluid communication with the inside of the exchange tubes at the opposite end of the bundle of tubes, characterized in that the plate (1.1) has an inner face and an outer face, the inner face configured for being oriented towards the cavity, and wherein said plate (1.1) comprises on its inner face a seat configured for resting on the perimetral seat of the cavity of the engine block; the first support (1.2) is located on the inner face of the plate (1.1); the second support (1.3) is also located on the inner face of the plate (1.1); the bundle of heat exchange tubes is located on the side of the inner face of the plate (1.1), an end of the bundle of tubes fixed in the first support (1.2) and the opposite end of the bundle of tubes fixed in the second support (1.3), the first internal chamber (1.2.1) is in fluid communication with the outer face of the plate (1.1) through a first opening (1.2.2) of said plate (1.1) and, the second internal chamber (1.3.1) is in fluid communication with a recirculated gas intake opening of the engine block.