This is a small business set-aside contract for an indefinite-delivery, indefinite-quantity (IDIQ) arrangement with one base year and one option year, covering motor vehicle transmission and power train parts. Performance of services is required at UNICOR, Federal Prison Industries, Inc., located at 201 FCI Lane, Glenville, WV 26531, with F.O.B. destination delivery terms. The contract includes an Economic Price Adjustment tied to the Producer Price Index for NAICS 336350, and offerors may challenge the index in writing at least five calendar days before the offer due date. All questions must be submitted in writing via email by May 26, 2026. The government may request bid samples and reserves the right to add future requirements from other UNICOR factories if deemed within scope and at a fair price.