 OSHKOSH, Wis.--BUSINESS WIRE--- OSK earnings--Oshkosh Corporation NYSE: OSK, a leading innovator of mission-critical vehicles and essential equipment, today reported fiscal 2021 third quarter net income of 213.9 million, or 3.07 per diluted share, compared to 80.2 million, or 1.17 per diluted share, in the third quarter of fiscal 2020. Results for the third quarter of fiscal 2021 included a 69.9 million tax benefit associated with the carryback of a U.S. net operating loss to prior years with higher f 