Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

HTS heading 8433: Harvesting or threshing machinery, including straw or fodder balers; grass or hay mowers; machines for cleaning, sorting or grading eggs, f…

41 numbered lines under heading 8433, including 31 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 8433
HTS codeDescriptionUnitGeneralSpecialColumn 2
8433Harvesting or threshing machinery, including straw or fodder balers; grass or hay mowers; machines for cleaning, sorting or grading eggs, fruit or other agricultural produce, other than machinery of heading 8437; parts thereof:
Mowers for lawns, parks or sports grounds:
8433.11.00Powered, with the cutting device rotating in a horizontal planeFree30%
8433.11.00.10Electric mowers, including battery operatedNo.
Riding mowers, other than electric:
8433.11.00.20Under 5.2 kWNo.
8433.11.00.305.2 kW and over but under 7.46 kWNo.
8433.11.00.407.46 kW and overNo.
Other:
8433.11.00.50Under 3.7 kWNo.
8433.11.00.603.7 kW and overNo.
8433.19.00OtherFree30%
8433.19.00.10Greens mowersNo.
8433.19.00.20Gang cutting unitsNo.
8433.19.00.30Other riding mowersNo.
Other:
8433.19.00.40Gasoline poweredNo.
8433.19.00.50OtherNo.
8433.20.00Other mowers, including cutter bars for tractor mountingFreeFree
Tractor drawn or for tractor mounting:
8433.20.00.20Rotary cutter typeNo.
8433.20.00.40OtherNo.
8433.20.00.60OtherNo.
8433.30.00.00Other haymaking machineryNo.FreeFree
8433.40.00.00Straw or fodder balers, including pick-up balersNo.FreeFree
Other harvesting machinery; threshing machinery
8433.51.00Combine harvester-threshersFreeFree
8433.51.00.10Self-propelledNo.
8433.51.00.90OtherNo.
8433.52.00.00Other threshing machineryNo.FreeFree
8433.53.00.00Root or tuber harvesting machinesNo.FreeFree
8433.59.00OtherFreeFree
8433.59.00.10Field forage harvestersNo.
8433.59.00.90OtherNo.
8433.60.00Machines for cleaning, sorting or grading eggs, fruit or other agricultural produceFreeFree
8433.60.00.10Machines for cleaning, sorting or grading eggsNo.
8433.60.00.90OtherNo.
8433.90Parts:
8433.90.10Of mowers for lawns, parks or sports groundsFree30%
8433.90.10.10Wheel and tire assembliesNo.
8433.90.10.90OtherNo.
8433.90.50OtherFreeFree
Of other mowers, harvesting machines and threshing machines:
8433.90.50.10Road wheelsNo.
8433.90.50.25Of haying machines and balersNo.
8433.90.50.45OtherNo.
8433.90.50.60Of machines for cleaning, sorting or grading eggsNo.
8433.90.50.80Of machines for cleaning, sorting or grading fruit or other agricultural produceNo.

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.