Caterpillar 3406B Engine Cylinder Head from Mexico
Cast iron cylinder head assembly for Caterpillar 3406B diesel engines (8408), complete with valve seats and ports optimized for heavy equipment applications. Includes pre-chamber design for efficient combustion. Falls under 8409.99.99 as engine-specific replacement part.
Duty Rate — Mexico → 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
• Provide CAD drawings and material specs showing compatibility only with 3406B engine architecture
• Include end-user statements from equipment manufacturers confirming engine-specific application
• Avoid misclassification under 8708.99 by demonstrating part cannot be used in non-8408 engine applications