Oshkosh Defense LLC, Oshkosh, Wisconsin, has been awarded an estimated $73,871,685 firm-fixed-price, indefinite-quantity contract for various heavy truck weapon systems replacement parts. This was a sole-source acquisition using justification 10 U.S.C. 3204 (a)(1), as stated in Federal Acquisition Regulation 6.302-1. This is a three-year base contract with two one-year option periods. The performance completion date is Sept. 29, 2027. Using military services are Army, Navy, Air Force and Marine Corps. Type of appropriation is fiscal 2024 through 2027 defense working capital funds. The contracting activity is the Defense Logistics Agency Land and Maritime, Columbus, Ohio (SPE7LX-23-D-0005).