Multifunctional suciton pipr for a diesel engine

The conduit (10) has a cylindrical manifold (11) including an air inlet (12) intaking air from a turbocharger and an air outlet placed on a cylinder head of an engine. The manifold extends along a curved axis (X) so as to be folded on itself. A vertical protective wall (15) is projected from an upper outer surface of the manifold, and assures a support function and shock resistant function of a fuel filter (20). The manifold is provided with a redirected exhaust gas recirculation inlet (19). The wall and the manifold are made of aluminum.