This is a Sources Sought Notice for a diesel engine (NSN 2815-01-581-0635) used in the M915A5 LINEHAULER truck. The base and option period quantities are 16 units each, and the government lacks detailed technical data for this item. Qualification testing and evaluation are required to become an approved source, but approval does not guarantee future business. No budget amounts or performance location are specified in the notice. Interested parties should review the Source Approval Program and SAR Package requirements via the provided links.