The invention relates to an oil pan module (21) for internal combustion engines (1) and to a process for making such a part by injection molding. The oil pan module (21) is fastened to the housing (2) of the internal combustion engine (1) and holds the lubricating oil supply (7). Integrated with oil pan module (21) are parts (8, 9, 12) of the oil circulation system. Oil pan module (21) consists of a polyamide-based thermoplastic material reinforced with glass fibers and/or mineral matter.