This is a Sources Sought notice to gauge small business interest and capability for a potential future procurement. The requirement is for a complete Cummins ISL9 450 engine for a specific ladder truck, to be delivered to F.E. Warren AFB, Wyoming, within 30 days of any future award. The government anticipates a Firm-Fixed-Price contract and intends to set it aside for small businesses if at least two qualified small businesses respond to this notice. This is for planning purposes only and is not a formal solicitation for bids or proposals.