A tandem axial piston pump having a common cylinder block. A first axial piston pump includes a first set of pistons arranged in a parallel, circular array and configured to reciprocate in response to rotation about a central axis. A second axial piston pump includes a second set of pistons arranged in a parallel, circular array and configured to reciprocate as they rotate about the central axis. A common drive shaft extends along the central axis, both the first and second sets of pistons being configured to rotate with the common drive shaft. Both the first and second sets of pistons are configured to reciprocate within corresponding separate first and second sets of cylinder bores of the common cylinder block.