The Defense Logistics Agency, under the Department of Defense, is seeking sources capable of providing diesel engines for the D7R-II Tractor, specifically identified by NSN 2815-01-578-3605 and Part Number 501-9544, with a total requirement of 318 units. This procurement is part of a Sources Sought Notice aimed at identifying potential suppliers who can meet the technical specifications and undergo qualification testing to become approved sources for future solicitations. The diesel engine is a critical component, functioning as a reciprocating internal combustion engine that powers the tractor through the ignition of a compressed fuel and air mixture. Interested parties should note that this notice is not an open solicitation, and they can reach out to Donald Merkle at donald.merkle@dla.mil or call 586-335-8436 for further information regarding the Source Approval Program and the necessary qualification processes.