Cummins Marine Piston Assembly from Japan
A high-strength forged piston assembly designed exclusively for Cummins QSL9 marine propulsion engines used in commercial vessels. It features specialized coatings for marine environments and precise tolerances for high-RPM operation in saltwater conditions. Classified under HTS 8409.99.92 as a part suitable solely for marine propulsion engines of heading 8408.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify engine model compatibility with marine propulsion certification (e.g
• ABS, DNV) to avoid reclassification
• Include detailed engineering specs proving 'solely or principally' marine use; inland engine parts fall elsewhere