A generator coupling assembly includes an output housing, an output member rotationally supported by the output housing, a generator powered by the output member, and a clutch adapter. The generator includes a generator stator, a generator rotor rotatably supported within the generator stator, a shaft coupled to the generator rotor, and a clutch member arranged on the shaft. The clutch adapter is coupled to and radially retained by the output member, and includes a clutching structure configured for selective engagement with the clutch member to engage the clutch member and the clutch adapter for co-rotation.