This is a 100% small business set-aside solicitation for a firm fixed-price contract to supply four OEM Volvo Penta longblock diesel engines (NSN 2815 01-647-1391) as a brand name sole source. Delivery of the items is required by August 28, 2026, and performance will take place at the USCG Yard in Baltimore, MD (2401 Hawkins Point Road, Bldg 88). No budget amount is specified in the description. Interested vendors must be registered in SAM and able to provide OEM parts directly, as no technical data will be shared. Award will be made on an all-or-none basis to the lowest cost technically acceptable offeror, with delivery considered as important as cost.