This is a combined synopsis/solicitation for a brand-name replacement International DT466 remanufactured diesel engine assembly to support an R11 Aircraft Refueler Truck for the 673d Logistics Readiness Squadron. The requirement is 100% set-aside for small business concerns under NAICS 333618 and PSC 2815, and is brand-name restricted to International. The contract will be firm-fixed-price for one each of CLIN 0001, conforming to specified salient characteristics including a 2005 International DT466 trimmed engine, renewed part number 2596573C92, injector configuration 642011C005, and horsepower range 245(ST)–285(HT). Delivery, inspection, and acceptance are FOB Destination to 673 LRS/LGRV, 8288 Gott Ave, Joint Base Elmendorf-Richardson, AK 99506-0000, on or before 29 December 2026 (within 90 calendar days after contract). Quotes must be submitted electronically via email, remain valid for 60 calendar days, and must not be submitted in .zip format.