A pump for supplying fluid to a unit, the pump comprising: 1.1. a pump housing comprising - an inlet for the fluid on a low-pressure side, - an outlet for the fluid on a high-pressure side, - a circumferential wall which radially surrounds a delivery chamber, and - an end wall having an outer end face which faces axially away from the delivery chamber and on which the outlet emerges; 1.2. a spring structure which is arranged on the outer end face of the end wall; 1.3. a delivery member (17, 18) which can be moved within the delivery chamber for delivering the fluid from the low-pressure side to the high-pressure side; 1.4. a securing device for axial securing the pump housing, in particular for transport, the securing device comprising - a female holding element (21; 41; 51; 61) having an axially extending cavity (22; 42; 52; 62), - a male holding element (23; 43; 53; 63) which is in a joining engagement, which can be exposed to an axial tensile load, with the female holding element (21; 41; 51; 61) in the cavity (22; 42; 52; 62), and - an additional holding element (24; 34; 44; 54; 64), 1.5. wherein the spring structure and/or the end wall is/are held on the pump housing by one of the holding elements by way of the joining engagement, characterised in that 1.6. the securing device is not in an axial sealing contact with a connecting wall of an accommodating device when the pump is installed, and 1.7. the additional holding element (24; 34; 44; 54; 64) overlaps with the end wall in an axial view and holds the pump housing axially together. 1.1. a pump housing comprising - an inlet for the fluid on a low-pressure side, - an outlet for the fluid on a high-pressure side, - a circumferential wall which radially surrounds a delivery chamber, and - an end wall having an outer end face which faces axially away from the delivery chamber and on which the outlet emerges; - an inlet for the fluid on a low-pressure side, - an outlet for the fluid on a high-pressure side, - a circumferential wall which radially surrounds a delivery chamber, and - an end wall having an outer end face which faces axially away from the delivery chamber and on which the outlet emerges; 1.2. a spring structure which is arranged on the outer end face of the end wall; 1.3. a delivery member (17, 18) which can be moved within the delivery chamber for delivering the fluid from the low-pressure side to the high-pressure side; 1.4. a securing device for axial securing the pump housing, in particular for transport, the securing device comprising - a female holding element (21; 41; 51; 61) having an axially extending cavity (22; 42; 52; 62), - a male holding element (23; 43; 53; 63) which is in a joining engagement, which can be exposed to an axial tensile load, with the female holding element (21; 41; 51; 61) in the cavity (22; 42; 52; 62), and - an additional holding element (24; 34; 44; 54; 64), - a female holding element (21; 41; 51; 61) having an axially extending cavity (22; 42; 52; 62), - a male holding element (23; 43; 53; 63) which is in a joining engagement, which can be exposed to an axial tensile load, with the female holding element (21; 41; 51; 61) in the cavity (22; 42; 52; 62), and - an additional holding element (24; 34; 44; 54; 64), 1.5. wherein the spring structure and/or the end wall is/are held on the pump housing by one of the holding elements by way of the joining engagement, characterised in that 1.6. the securing device is not in an axial sealing contact with a connecting wall of an accommodating device when the pump is installed, and 1.7. the additional holding element (24; 34; 44; 54; 64) overlaps with the end wall in an axial view and holds the pump housing axially together.