Fuel Injector O-Rings from Mexico
Vulcanized Viton O-rings sealing fuel injector nozzles in diesel engines. HTS 4016.93.50 for other gaskets/washers, fuel-resistant fluoroelastomer. Not hard rubber or Chapter 84 engine parts.
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
• TSCA certification for chemical resistance claims
• OEM part numbers help but don't override material-based classification
• Watch for CARB emissions compliance labeling