Autolite NGK4123 Ceramic Spark Insulator from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Confirm 'stationary' engine definition excludes mobile equipment; include dielectric test reports; verify no hazardous material content declarations needed