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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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