Water-Cooled Marine Engine Exhaust Manifold from Mexico
Cast iron exhaust manifold with integrated water jackets for spark-ignition marine propulsion engines, preventing overheating in inboard applications. Designed to mix cooling water with exhaust gases. Classified under 8409.91.92.90 as principal marine engine part.
Duty Rate — Mexico → United States
12.5%
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
• Include heat exchanger specifications proving marine cooling integration
• Document riser compatibility with specific marine hull designs
• Ensure backpressure calculations meet USCG emissions standards