HTS Heading 8403

Central heating boilers (other than those of heading 8402) and parts thereof

All 2 HTS codes under heading 8403 (central heating boilers), with their duty rates from the 2026 HTS Revision 23. General duty Free.

Every line of heading 8403

  • 8403 Central heating boilers (other than those of heading 8402) and parts thereof.
  • 8403.10.00.00 Boilers (under: Central heating boilers (other than those of heading 8402) and parts thereof) (No.): General Free; Special none; Column 2 45%.
  • 8403.90.00.00 Parts (under: Central heating boilers (other than those of heading 8402) and parts thereof) (kg): General Free; Special none; Column 2 45%.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.

Last reviewed 2026-11-12.