The Department of the Interior, specifically the National Park Service, is seeking qualified contractors to provide repair services for the radiator system of a Caterpillar D7 Dozer at Grand Canyon National Park. The procurement requires a certified Caterpillar technician to perform a complete teardown, inspection, cleaning, and reassembly of the radiator system to ensure the Dozer operates effectively and prevents engine overheating during heavy use. This maintenance is crucial for the operational efficiency and safety of equipment used in land management activities within the national park. Quotes must be submitted electronically by July 14, 2025, with the contract performance period scheduled from July 16 to August 16, 2025. Interested parties should direct any questions to Lindsay McLaughlin at lindsay_mclaughlin@nps.gov by July 7, 2025.