Trailer stroke extender (1, 50) for use in a hydraulic trailer system, which trailer stroke extender (1, 50) is adapted to be arranged between a spine beam connector of a first hydraulic trailer and a spine beam connector of a second hydraulic trailer, the trailer stroke extender (1, 50) comprising: - a cradle frame, which comprises a first cradle-to-beam connector and a second cradle-to-beam connector, wherein the first cradle-to-beam connector is adapted to be connected to the spine beam connector of the first hydraulic trailer and the second cradle-to-beam connector is adapted to be connected to the spine beam connector of the second hydraulic trailer, the first and the second cradle-to-beam connectors being spaced apart from each other in a longitudinal direction of the trailer stroke extender (1, 50), characterized in that the trailer stroke extender (1, 50) also comprises: - a first hydraulic cylinder and a second hydraulic cylinder which are adapted to move a trailer load in a vertical direction relative to the cradle frame over a single stroke length, which first hydraulic cylinder and second hydraulic cylinder are arranged in the cradle frame at a distance from each other in a lateral direction of the trailer stroke extender (1, 50). which trailer stroke extender (1, 50) is adapted to be arranged between a spine beam connector of a first hydraulic trailer and a spine beam connector of a second hydraulic trailer, the trailer stroke extender (1, 50) comprising: - a cradle frame, which comprises a first cradle-to-beam connector and a second cradle-to-beam connector, wherein the first cradle-to-beam connector is adapted to be connected to the spine beam connector of the first hydraulic trailer and the second cradle-to-beam connector is adapted to be connected to the spine beam connector of the second hydraulic trailer, the first and the second cradle-to-beam connectors being spaced apart from each other in a longitudinal direction of the trailer stroke extender (1, 50), - a cradle frame, which comprises a first cradle-to-beam connector and a second cradle-to-beam connector, wherein the first cradle-to-beam connector is adapted to be connected to the spine beam connector of the first hydraulic trailer and the second cradle-to-beam connector is adapted to be connected to the spine beam connector of the second hydraulic trailer, the first and the second cradle-to-beam connectors being spaced apart from each other in a longitudinal direction of the trailer stroke extender (1, 50), characterized in that the trailer stroke extender (1, 50) also comprises: - a first hydraulic cylinder and a second hydraulic cylinder which are adapted to move a trailer load in a vertical direction relative to the cradle frame over a single stroke length, which first hydraulic cylinder and second hydraulic cylinder are arranged in the cradle frame at a distance from each other in a lateral direction of the trailer stroke extender (1, 50). - a first hydraulic cylinder and a second hydraulic cylinder which are adapted to move a trailer load in a vertical direction relative to the cradle frame over a single stroke length, which first hydraulic cylinder and second hydraulic cylinder are arranged in the cradle frame at a distance from each other in a lateral direction of the trailer stroke extender (1, 50).