A filter cartridge of a filter group of a fluid of a vehicle, wherein said filter group extends along a main axis (X-X) and further comprises: i) a filter body engageable and preferably fluidically connectable to the filter cartridge; ii) engagement means comprising cartridge engagement members comprised in the filter cartridge and body engagement members comprised in the filter body, respectively specially shaped so as to be configurable by means of a mutual movement in an axial direction, between an engagement configuration in which the filter body and the filter cartridge are mutually integrally engaged and a disengagement configuration in which the filter body and filter cartridge are mutually disengaged; wherein the filter cartridge extends along a cartridge axis (Z-Z) and comprises at an axial end an end plate on which said cartridge engagement members are arranged, which extend in height parallel to the cartridge axis (Z-Z) and are arranged around said cartridge axis (Z-Z); wherein said cartridge engagement members comprise at least two locking groups, wherein each locking group comprises at least one locking element, wherein each locking element comprises a stem and a tooth placed at the axial end of the stem projecting therefrom in a lateral direction, that is in a circumferential or tangential direction, defining with the stem an engagement undercut in such a way that in the locking configuration the tooth is housed in a housing region comprised in the specially shaped body engagement members and an engagement projection comprised in the specially shaped body engagement members is housed in the undercut; wherein each tooth extends towards the facing locking group; wherein, in the axial movements between the filter cartridge and body, the stem of each locking element yields elastically in the radial direction and/or in the lateral direction upon action of the engagement projection on the tooth. i) a filter body engageable and preferably fluidically connectable to the filter cartridge; ii) engagement means comprising cartridge engagement members comprised in the filter cartridge and body engagement members comprised in the filter body, respectively specially shaped so as to be configurable by means of a mutual movement in an axial direction, between an engagement configuration in which the filter body and the filter cartridge are mutually integrally engaged and a disengagement configuration in which the filter body and filter cartridge are mutually disengaged; wherein the filter cartridge extends along a cartridge axis (Z-Z) and comprises at an axial end an end plate on which said cartridge engagement members are arranged, which extend in height parallel to the cartridge axis (Z-Z) and are arranged around said cartridge axis (Z-Z); wherein said cartridge engagement members comprise at least two locking groups, wherein each locking group comprises at least one locking element, wherein each locking element comprises a stem and a tooth placed at the axial end of the stem projecting therefrom in a lateral direction, that is in a circumferential or tangential direction, defining with the stem an engagement undercut in such a way that in the locking configuration the tooth is housed in a housing region comprised in the specially shaped body engagement members and an engagement projection comprised in the specially shaped body engagement members is housed in the undercut; wherein each tooth extends towards the facing locking group; wherein, in the axial movements between the filter cartridge and body, the stem of each locking element yields elastically in the radial direction and/or in the lateral direction upon action of the engagement projection on the tooth.