Cast Iron Marine Engine Water Jacket Casting from Mexico
Rough cast-iron water jacket liner for cooling marine propulsion engines, cleaned of risers and lightly machined for fixture placement. Channels coolant around cylinders in ship engines. 8409.99.10.60 due to cast-iron material and minimal processing state.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide thermal performance specs tying jacket to specific marine engine cooling requirements
• Ensure no internal surface machining; such work moves to advanced parts category
• Label shipments clearly as 'rough castings - marine propulsion only' to guide CBP exam