Electric machine module cooling system and method

Embodiments of the invention provide an electric machine module. The module can include a housing that can define a machine cavity. The sleeve member (14) can include a first and a second axial end. The sleeve member (14) can further include a first coolant jacket (36) and a first seal element (46) coupled to the sleeve member (14) substantially adjacent to the first axial end to substantially seal at least a portion of the first coolant jacket. The sleeve member (14) can include a second coolant jacket (36) and a second seal element (46) coupled to the sleeve member substantially adjacent to the second axial end to substantially seal at least a portion of the second coolant jacket. The module can include a stator assembly positioned within the machine cavity so that portions of the first and second coolant jackets substantially circumscribe portions of the stator assembly.