Large crosshead diesel engine

Large crosshead diesel engine comprises a base plate (2) provided with a single-walled transverse support element (12). Preferred Features: The transverse supporting walls (7) of at least one support body (6) are arranged parallel to each other or form a V-shape with an increasing separation distance in the direction of the cylinder section (10). A tie rod (11) extends between the transverse supporting walls of the support body. The support body is in alignment with the longitudinal axis (Z) of the tie rod.