This is a 100% Total Small Business Set-Aside solicitation for two (2) EA of a specific radiator part (P/N A-22184-1) for DLA Weapons Support in Pearl Harbor. The requirement is being sole-sourced to the manufacturer APS PRESSURE SYSTEM (CAGE: 5WHF9) to maintain existing warranties, meaning only parts from this source or its authorized distributors are acceptable. The evaluation criteria are Lowest Price Technically Acceptable (LPTA), and offerors must submit descriptive literature to demonstrate how their quotation meets specifications. Quotations must be submitted via email to the listed point of contact, and vendors must be registered in SAM.gov.