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8547.10.40.00/Motorcraft SP-527NG Ceramic Core/Japan

Motorcraft SP-527NG Ceramic Core from Japan

Motorcraft SP-527NG ceramic core for spark plugs in natural gas standby generators and industrial engines. High-purity porcelain formulation resists carbon tracking in rich NG mixtures. Designated HTS 8547.10.40.00 for ceramic insulators in stationary NG engine spark plug production.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Classify based on OEM spark plug blueprints; provide thermal expansion coefficient data; beware of anti-dumping duties on certain ceramic imports from Asia