A connection mechanism for a hydraulic system comprising: a first component having a first outer body defining a first passage in an axial direction for delivering fluid there through, a second component having a second outer body defining a second passage in an axial direction for delivering fluid there through, at least one receptacle element including one or more blocking portions (11a, 11b, 11c), the one or more blocking portions defining a space in the receptacle element, and at least one engagement element including one or more contact portions (21a, 21b) extending substantially in a radial direction of the engagement element, the engagement element snuggly fitting into the space defined by the one or more blocking portions such that the one or more contact portions are substantially engaged with the one or more blocking portions when the engagement element Is engaged with the receptacle element, wherein the connection mechanism further comprises a seal configured to seal a connecting region between the first passage and the second passage, the at least one receptacle element and a further engagement element are arranged on axial ends of the first component, and the at least one engagement element and a further receptacle element are arranged on axial ends of the second component, the engagement and further engagement elements (21, 12) being engageable with the receptacle and further receptacle elements (11,22) by a translational movement of the first and the second component (10, 20) relative to each other, the translational movement being (i) linear In a substantially radial direction relative to the axial direction of the first and/or second component, or (ii) along a curved path ending in a substantially radial direction relative to the axial direction of the first and/or second component, and wherein that the receptacle and further receptacle elements inhibit axial movement of the engagement and further engagement elements when the engagement elements are engaged with respective receptacle elements, the connection mechanism being characterized in that the seal is a c-seal which is configured to seal the connection region by internal pressure of the hydraulic system when the at least one receptacle element and the at least one engagement element are engaged, wherein the open section of the C-seal is exposed to the internal fluid pressure and wherein the C-seal is provided in a sealing seat portion in the first component or second component. a first component having a first outer body defining a first passage in an axial direction for delivering fluid there through, a second component having a second outer body defining a second passage in an axial direction for delivering fluid there through, at least one receptacle element including one or more blocking portions (11a, 11b, 11c), the one or more blocking portions defining a space in the receptacle element, and at least one engagement element including one or more contact portions (21a, 21b) extending substantially in a radial direction of the engagement element, the engagement element snuggly fitting into the space defined by the one or more blocking portions such that the one or more contact portions are substantially engaged with the one or more blocking portions when the engagement element Is engaged with the receptacle element, wherein the connection mechanism further comprises a seal configured to seal a connecting region between the first passage and the second passage, the at least one receptacle element and a further engagement element are arranged on axial ends of the first component, and the at least one engagement element and a further receptacle element are arranged on axial ends of the second component, the engagement and further engagement elements (21, 12) being engageable with the receptacle and further receptacle elements (11,22) by a translational movement of the first and the second component (10, 20) relative to each other, the translational movement being (i) linear In a substantially radial direction relative to the axial direction of the first and/or second component, or (ii) along a curved path ending in a substantially radial direction relative to the axial direction of the first and/or second component, and (i) linear In a substantially radial direction relative to the axial direction of the first and/or second component, or (ii) along a curved path ending in a substantially radial direction relative to the axial direction of the first and/or second component, and wherein that the receptacle and further receptacle elements inhibit axial movement of the engagement and further engagement elements when the engagement elements are engaged with respective receptacle elements, the connection mechanism being characterized in that the seal is a c-seal which is configured to seal the connection region by internal pressure of the hydraulic system when the at least one receptacle element and the at least one engagement element are engaged, wherein the open section of the C-seal is exposed to the internal fluid pressure and wherein the C-seal is provided in a sealing seat portion in the first component or second component.