Marine Diesel Crankcase Casting from Japan
Cast-iron crankcase housing rough-machined only for fin removal, used in medium-speed marine propulsion diesel engines of heading 8408. Encloses crankshaft and main bearings. Qualifies for 8409.99.10.60 as cast-iron part limited to basic cleaning processes.
Duty Rate — Japan → United States
10%
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
• Cross-reference with engine serial numbers in import docs for definitive marine propulsion linkage
• Consult foundry logs proving machining limited to permitted operations only
• Declare exact carbon equivalent to confirm cast-iron metallurgy versus steel castings