A fuel injection module for direct injection of gaseous fuel for one cylinder of a multi-cylinder two-stroke internal combustion piston engine, the module comprising: an enclosure, enclosing within the enclosure - a liquefied gas supply manifold section (120,120'), - a liquefied gas return manifold section (140,140'), arranged parallel with each other within the enclosure, and - a liquefied gas high-pressure pump unit connected to the liquefied gas supply manifold (120, 120') and to the liquefied gas return manifold (140, 140'), and a high-pressure liquefied gas outlet in the liquefied gas high-pressure pump unit, and the module further comprising outside the enclosure: - a heat exchanger unit configured to evaporate the liquefied gas and heating the gaseous gas and being provided with a liquefied gas inlet and a gaseous gas outlet, the liquefied gas inlet being connected to the high-pressure outlet of the liquefied gas high-pressure pump unit by means of a fuel feed line, and - at least one gaseous gas fuel injector connected to the heat exchanger unit, wherein the fuel feed line outside the enclosure is provided with a separate double wall which forms an intermediate space inside the double wall and the enclosure is provided with a lead-through block via which lead-through block a portion of the fuel feed line outside the enclosure and a portion of the fuel feed line is inside the enclosure are connected with each other, and which lead-through block separates the intermediate space of the fuel feed line from the space of the enclosure. an enclosure, enclosing within the enclosure - a liquefied gas supply manifold section (120,120'), - a liquefied gas return manifold section (140,140'), arranged parallel with each other within the enclosure, and - a liquefied gas high-pressure pump unit connected to the liquefied gas supply manifold (120, 120') and to the liquefied gas return manifold (140, 140'), and a high-pressure liquefied gas outlet in the liquefied gas high-pressure pump unit, and - a liquefied gas supply manifold section (120,120'), - a liquefied gas return manifold section (140,140'), arranged parallel with each other within the enclosure, and - a liquefied gas high-pressure pump unit connected to the liquefied gas supply manifold (120, 120') and to the liquefied gas return manifold (140, 140'), and a high-pressure liquefied gas outlet in the liquefied gas high-pressure pump unit, and the module further comprising outside the enclosure: - a heat exchanger unit configured to evaporate the liquefied gas and heating the gaseous gas and being provided with a liquefied gas inlet and a gaseous gas outlet, the liquefied gas inlet being connected to the high-pressure outlet of the liquefied gas high-pressure pump unit by means of a fuel feed line, and - at least one gaseous gas fuel injector connected to the heat exchanger unit, - a heat exchanger unit configured to evaporate the liquefied gas and heating the gaseous gas and being provided with a liquefied gas inlet and a gaseous gas outlet, the liquefied gas inlet being connected to the high-pressure outlet of the liquefied gas high-pressure pump unit by means of a fuel feed line, and - at least one gaseous gas fuel injector connected to the heat exchanger unit, wherein the fuel feed line outside the enclosure is provided with a separate double wall which forms an intermediate space inside the double wall and the enclosure is provided with a lead-through block via which lead-through block a portion of the fuel feed line outside the enclosure and a portion of the fuel feed line is inside the enclosure are connected with each other, and which lead-through block separates the intermediate space of the fuel feed line from the space of the enclosure.