The Department of Defense, specifically the Department of the Army, intends to solicit and negotiate a fixed-price contract for the procurement of 450 M917A3 Heavy Dump Trucks (HDT) from Mack Defense, LLC, on a sole-source basis. This procurement includes armored vehicles and various ancillary kits and equipment, which are critical for military operations and logistics. The contract will be executed at Mack Defense's facility in Macungie, Pennsylvania, with proposals considered within 15 days of the publication of this presolicitation notice. Interested parties may contact Nicholas Pelini at nicholas.r.pelini.civ@army.mil or Helen Smith at helen.h.smith.civ@army.mil for further information.