Harmonized Tariff Schedule of the United States · HTS code · HS 8419.50

8419.50.50

8419.50.50: Heat exchangers: Machinery, plant or laboratory equipment, whether: heat exchange units, other

Heat exchangers

Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026

  1. 8419 Machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 8514), for the treatment of materials by a process involving a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilizing, pasteurizing, steaming, drying, evaporating, vaporizing, condensing or cooling, other than machinery or plant of a kind used for domestic purposes; instantaneous or storage water heaters, nonelectric; parts thereof:
  2. 8419.50 Heat exchange units:
  3. 8419.50.50 Other

What you pay

Importing into USA

Customs duty Free standard rate depends on the country of origin
Additional duties and charges 1 additional measure
VAT no federal VAT; a Merchandise Processing Fee of 0.3464 % is charged on formal entries
Duty calculatorCalculate duty and taxes →

US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.

Additional duties and import rules

Charges on top of the customs duty, and rules the goods must meet at the border.

Additional duties and charges 1

  • Additional dutySection 232 — Steel, aluminium, copper and derivatives 200%
    Applies to goods from
    Russia
    In force
    from 10 March 2023
    Legal act
    HTSUS 9903.85.68

Same subheading in other tariffs

8419.50 Machinery, plant or laboratory equipment, whether: heat-exchange units

USA lines: 8419.50

Binding rulings for similar goods

Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.

  • N351458 U.S. CBP 8 August 2025 · 8419.50.50.00

    The tariff classification of a shell and tube heat exchanger from Canada

  • N349493 U.S. CBP 12 June 2025 · 8419.50.50.00

    The tariff classification of cooling modules from Canada

  • N349078 U.S. CBP 3 June 2025 · 8419.50.50.00

    The tariff classification of a crude cooler module from Canada

  • N335926 U.S. CBP 30 October 2023 · 8419.50.50.00

    The tariff classification of a crude heater from Canada

  • H316373 U.S. CBP 30 August 2021 · 8419.50.50

    Protest No. 2809-20-105171; Classification of heat exchangers

  • H312651 U.S. CBP 23 November 2020 · 8419.50.50

    Protest No. 3901-20-109677; classification of plate-fin air-cooled heat exchangers

  • N309016 U.S. CBP 13 February 2020 · 8419.50.50.00

    The tariff classification of incomplete heat exchange coolers from China

  • N303497 U.S. CBP 11 April 2019 · 8419.50.50.00

    The tariff classification of five machines used in a Fishmeal Plant from China.

Legal notes

Notes

Chapter notes: Chapter 84 →

HTS code 8419.50.50 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 8419.50 (machinery, plant or laboratory equipment, whether: heat-exchange units).

The general duty is free, and quantities are declared in p/st.

For the same subheading, the UK duty is free, the EU duty is 0%–1.7%, the Türkiye duty is 1.7%, the Canada duty is free, the Mexico duty is 0%–35%, the Brazil duty is 12.6%–20%, the Argentina duty is 12.6%, the Peru duty is free, the New Zealand duty is 0%–5%, the Japan duty is free, the Taiwan duty is 0%–3%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 10% and the Nigeria duty is 5%.

The United States imported goods of subheading 8419.50 worth US$2bn in 2024; the largest supplier was Mexico, and the United Kingdom ranked 7th with US$141m.

Questions and answers

What is the USA import duty for HTS code 8419.50.50?

The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is p/st. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.

Where does the United States import these goods from?

For subheading 8419.50 as a whole, the largest supplier in 2024 was Mexico (US$418m), followed by China.

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Typical products

Everyday names, not part of the legal text.