Caterpillar Engines Maintenance

Naval Supply Systems Command is soliciting maintenance services for Caterpillar 3512C marine propulsion engines on four U.S. Navy Harbor Yard Tug Boats at Commander Fleet Activities Yokosuka, Japan, with proposals due September 8, 2026 at 1600 hours Japan Standard Time. Amendment 0001, issued September 4, updated CLIN 0002 to specify YT-806 heat exchanger overhaul and modified the associated Statement of Work; the original due date of September 4 was extended to September 8. The procurement carries a Women-Owned Small Business designation, though no set-aside is used.

Place of performance is Port Operations Building 5203, Commander Fleet Activities Yokosuka, Japan. The contract period runs September 1, 2026 through August 31, 2027. The solicitation requires that quoters be duly authorized to operate and do business in Japan per DFARS 252.225-7042; prime contractors outside Japan must submit documentation unambiguously demonstrating compliance, such as proof of incorporation, as part of their offer.

Work includes scheduled preventive maintenance every six months or 250 operating hours (whichever comes first) and every 24 months or 1,000 hours (whichever comes first), per Caterpillar Operation and Maintenance Manual SEBU7844-14. For YT-806, corrective maintenance includes complete heat exchanger overhaul and jacket water pump replacement on both port and starboard engines. The contractor must furnish all replacement parts at no additional cost, provide qualified technician personnel with applicable certifications, and dispose of waste in accordance with Japan Environmental Governing Standards and Japanese law. Services are scheduled Monday–Friday, 0800–1600 hours, with limited weekend availability. Both CLINs require firm-fixed unit pricing on an "ALL or NONE" basis; partial quotations are ineligible. Questions are due September 1 at 1200 hours JST. NAICS 811310; PSC J020.