HTS 8547.10.40.00
Ceramic insulators to be used in the production of spark plugs for natural gas-fueled, stationary, internal combustion engines
Chapter 85
Current Duty Rates
Source: USITC Harmonized Tariff Schedule — Last updated April 8, 2026
Rates reflect current base duties plus applicable surcharges. Section 301 rates apply to China-origin goods. Verify with your customs broker for your specific classification.
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Frequently Asked
What is HTS 8547.10?
HTS 8547.10 covers ceramic insulators to be used in the production of spark plugs for natural gas-fueled, stationary, internal combustion engines. It falls under Chapter 85 of the Harmonized Tariff Schedule of the United States.
What is the duty rate for HTS 8547.10.40.00?
The base (MFN) duty rate for HTS 8547.10.40.00 is 3%. Special preferential rates may apply: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG).
Are there any exclusions for HTS 8547.10.40.00?
Exclusions may apply depending on active Section 301 or Section 232 exclusion lists. Check the USTR exclusion portal or use TariffDesk to monitor this code for changes, including new exclusions.
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