The Department of Homeland Security, specifically the U.S. Coast Guard, is seeking quotations for Cummins diesel engine parts repair services under solicitation number 2125405B3000HP034. The procurement involves the overhaul and repair of specific Cummins engine components used on U.S. Coast Guard cutters, with strict requirements for original parts as substitutes are not acceptable. Interested vendors must ensure compliance with detailed packaging, marking, and delivery specifications, with a final delivery date set for January 1, 2027. Quotes are due by August 7, 2025, and should be submitted electronically to Brandie R. Dunnigan at brandie.r.dunnigan@uscg.mil.