Spark-Ignition Marine Piston and Ring Set from Mexico
Hypereutectic aluminum pistons with chrome-faced piston rings optimized for marine spark-ignition engines in inboard propulsion systems. Designed for high compression ratios and water-cooled operation. Under 8409.91.92.90 as parts principally for marine heading 8408 engines.
Duty Rate — Mexico → United States
12.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide piston bore specifications matching marine engine models
• Include ring gap measurements certified for marine operating conditions
• Avoid bulk generic piston classification (8409.99); specify marine application