Harmonized Tariff Schedule of the United States · HTS code · HS 8483.40

8483.40.50

8483.40.50: Gears and gearboxes (machinery): Fixed ratio speed changers, multiple and variable ratio: other

Gears and gearboxes (machinery)

Not declarable on its own: use one of its 3 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026

  1. 8483 Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof:
  2. 8483.40 Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque converters:
  3. Gear boxes and other speed changers:
  4. Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation:
  5. 8483.40.50 Other

What you pay

Importing into USA

Customs duty 2.5% standard rate depends on the country of origin
Additional duties and charges 3 additional measures
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 3

  • 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
  • Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 25%
    Applies to goods from
    China
    In force
    from 24 September 2018
    Legal act
    HTSUS 9903.88.03
  • Additional dutyRussia rate increase (Pub. L. 117-110) — Russian Federation (rates in lieu of column 2) 32.5%
    Applies to goods from
    Russia
    In force
    from 28 June 2022
    Legal act
    HTSUS 9903.90.08

Preferential rates by country

Agreement or schemeCountriesRate
General (MFN)—2.5%
US–Australia FTA AUAustraliaFree
US–Bahrain FTA BHBahrainFree
US–Chile FTA CLChileFree
US–Colombia TPA COColombiaFree
US–Israel FTA ILIsraelFree
US–Jordan FTA JOJordanFree
US–Korea FTA KRSouth KoreaFree
US–Morocco FTA MAMoroccoFree
US–Oman FTA OMOmanFree
CAFTA-DR PCosta Rica, Dominican Republic, El Salvador, Guatemala, Honduras, NicaraguaFree
US–Panama TPA PAPanamaFree
US–Peru TPA PEPeruFree
USMCA SCanada, MexicoFree
US–Singapore FTA SGSingaporeFree
Column 2Cuba, North Korea, Russia, Belarus27.5%

Special: reduced rates under trade agreements and preference programmes; the letters in brackets name the programmes (for example AU = Australia FTA, KR = Korea FTA).

Subdivisions

  1. 8483.40.50 Other 2.5%
  2. 8483.40.50.10 Fixed ratio speed changers No.
  3. 8483.40.50.20 Gear boxes and speed changers for wind turbines, as described in statistical note 9 to this chapter No.
  4. 8483.40.50.80 Other No.

Footnotes

  • 9903.90.08 Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter

Same subheading in other tariffs

8483.40 Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements presented separately; ball or roller screws; gear boxes and other speed changers, including torque converters

UK Free Third-country duty 24 tariff lines EU 3.7% Third-country duty 8 tariff lines Türkiye Free – 3.7% Third-country duty 18 tariff lines · average 2.1% Canada Free Third-country duty 7 tariff lines Mexico Free Third-country duty 8 tariff lines Brazil 12.6% Third-country duty 2 tariff lines Argentina 12.6% Third-country duty 9 tariff lines Peru Free Third-country duty 4 tariff lines New Zealand Free – 5% Third-country duty 6 tariff lines · average 3% · 1× specific or compound duty Japan Free Third-country duty 2 tariff lines Taiwan 2.5% – 10% Third-country duty 5 tariff lines · average 5.4% GCC 5% Third-country duty 7 tariff lines Switzerland Free Third-country duty 1 tariff line Norway Free Third-country duty 2 tariff lines North Macedonia 3.7% – 8% Third-country duty 8 tariff lines · average 6.1% Nigeria 10% Third-country duty 1 tariff line

USA lines: 8483.40

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.

  • N361005 U.S. CBP 20 May 2026 · 8483.40.50.10

    The tariff classification and country of origin of a harmonic planetary reducer

  • N355530 U.S. CBP 19 November 2025 · 8483.40.50.10

    The tariff classification of a gearbox from Japan

  • N345034 U.S. CBP 15 January 2025 · 8483.40.50.10

    The tariff classification of gear reducer from China

  • N296206 U.S. CBP 15 May 2018 · 8483.40.50.10

    The tariff classification of gear reducers from China

  • N292726 U.S. CBP 19 December 2017 · 8483.40.50.10

    The tariff classification of turbofan components from Canada.

Legal notes

Chapter notes: Chapter 84 →

HTS code 8483.40.50 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 8483.40 (gears and gearing).

The general duty is 2.5%.

3 statistical sub-lines below it are used in the declaration.

For the same subheading, the UK duty is free, the EU duty is 3.7%, the Türkiye duty is 0%–3.7%, the Canada duty is free, the Mexico duty is free, the Brazil duty is 12.6%, 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 2.5%–10%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3.7%–8% and the Nigeria duty is 10%.

The United States imported goods of subheading 8483.40 worth US$4bn in 2024; the largest supplier was India.

Questions and answers

What is the USA import duty for HTS code 8483.40.50?

The general duty in the Harmonized Tariff Schedule of the United States is 2.5%. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.

Is there a lower rate for 8483.40.50 under US trade agreements?

Yes. The Special column reads “Free (A*,AU, BH,C, CL, CO,D,E, IL, JO, KR, MA, OM,P, PA, PE,S, SG)”: the letters in brackets name the agreements and programmes that grant it.

Where does the United States import these goods from?

For subheading 8483.40 as a whole, the largest supplier in 2024 was India (US$614m), followed by Italy.

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Typical products

Everyday names, not part of the legal text.