Denso XNG27 Industrial Ceramic Insulator from China

Denso XNG27 series ceramic insulators optimized for spark plugs in large-bore natural gas engines used in pipeline compressor stations. Provides 30kV dielectric strength with corrosion-resistant glaze for harsh NG fuel environments. Specifically designed for HTS 8547.10.40.00 classification in stationary internal combustion engine spark plug production.

Duty Rate — China → United States

38%

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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

Certify insulators match spark plug models for EPA-certified NG engines; avoid mixing with gasoline spark insulators in same container; document molding process confirming minor metal integration