Marine Spark-Ignition Piston Engine Cylinder Head from Japan

A cast aluminum cylinder head designed specifically for marine spark-ignition internal combustion piston engines used in propulsion systems. It houses the valves, spark plugs, and combustion chamber for high-performance boating applications. Classified under 8409.91.92.90 as a part suitable solely for marine propulsion engines of heading 8408.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Import Tips

Provide engine model compatibility documentation to prove sole use with marine propulsion engines

Include material certifications (e.g

corrosion-resistant alloys) required for marine environments

Avoid classifying as general engine parts (8409.91.91); specify marine propulsion application