The invention relates to a fuel cell module (10) having a plurality of fuel cells forming a fuel cell stack and having an enclosure (14) which surrounds the fuel cell stack. The enclosure (14) includes a bottom assembly and a lid cap assembly (30), wherein the bottom assembly includes a jacket at least partly form-fitted to the stack architecture providing internal alignment functions and a bottom plate in pressure contact with the fuel cell stack, wherein the lid cap assembly (30) comprises a compression plate (32) in pressure contact with the fuel cell stack. The bottom assembly (20) and the lid cap assembly (30) are provided with a progressive locking system providing a range of compression pressures to the fuel cell module (10). Further aspects of the invention relate to a fuel cell system and to a method for producing a fuel cell module (10).