The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking qualified vendors for the repair and modification of engine block assemblies, identified by NSN 7R-2815-017026674-SX. The procurement involves a quantity of three units, with delivery terms set as FOB Origin, and is categorized under the PSC code 2815 for diesel engines and components. This opportunity is crucial for maintaining the operational readiness of naval equipment, and interested parties are encouraged to review relevant military and federal specifications available through the DoD Single Stock Point. For further inquiries, potential bidders can contact Shamus F. Roache at (215) 697-5047 or via email at SHAMUS.ROACHE@NAVY.MIL, with a note that the government is not utilizing FAR Part 12 policies for this solicitation.