PURPOSE: To provide an exhauster for an internal combustion engine for a vehicle which is designed to prevent the increase of the weight of a support stay and lowering of the space efficiency of an engine room.

CONSTITUTION: An exhauster is provided for comprising exhaust gas manifolds 7a-7d disposed on the output shaft 6 side and a catalyst container 11 located between the manifolds 7a-7d and an exhaust gas pipe 18 on the downstream side. In this case, the catalyst container 11 is disposed above an output shaft 6 such that the flow direction of exhaust gas passing through the catalyst container 11 is extended approximately in parallel to an output shaft 6.