Autolite NGK4123 Ceramic Spark Insulator from Mexico
Autolite NGK4123 heavy-duty ceramic insulator for extended-reach spark plugs in natural gas-fueled drilling rig engines. Features double-fired glaze for superior gas seal integrity. Classifies precisely under HTS 8547.10.40.00 for stationary internal combustion NG spark plug production.
Duty Rate — Mexico → United States
13%
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
• Confirm 'stationary' engine definition excludes mobile equipment; include dielectric test reports; verify no hazardous material content declarations needed