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 . <EOS>