Abstract: To reduce the number of the fuel distribution pipes and fuel joints to make the cost for them inexpensive, a fuel distribution pipe is provided with a fuel distribution passage with one end being opened by a fuel introduction hole, a plurality of injection valve insertion holes positioned apart from a longitudinal axial line of the fuel distribution passage toward one side by a predetermined amount, having longitudinal axial lines thereof crossing orthogonally to the longitudinal axial line, and having a leading end open toward one side a plurality of mounting bosses formed orthogonally to a cross section including the longitudinal axial lines and, and each having an upper end surfaces and a lower end surfaces uniformly protruding upward and, downward a predetermined amount from the longitudinal axial line, and mounting holes provided in the mounting bosses apart from the longitudinal axial line toward one side by a predetermined amount, at least two fuel distribution pipes being prepared, the fuel introducti