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HSChapter 84
U.S. exports of parts for harvesting, threshing, mowing, baling, and produce-sorting machinery (HS 843390) totaled $65.2M in July 2026.
Importers of Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery paid $5.0M in duties in July 2026 — an effective duty rate of 17% on $29.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery imports of $33.3M in July 2026 ran 38% below the year-to-date monthly average of $53.6M.
Last updated: July 2026 dataReplacement and service parts for the full range of agricultural field and post-harvest equipment — from lawn mower wheel and tire assemblies (8433901010) to combine harvester components and egg-sorter parts (8433905060) — are consolidated under this heading's ten US tariff lines. China is the leading supplier, followed by Canada and Mexico, creating a supply chain that spans both low-cost manufacturing and integrated North American production. Parts classification requires matching each component to the correct machine-type line, as the schedule distinguishes mower parts, haying and baler parts, harvesting and threshing machine parts, and produce-sorting machine parts in separate subheadings.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
3.4K shipments/mo
When a part is designed or marketed for use in multiple machine types covered by different 10-digit lines under 843390, US Customs generally directs classification to the machine for which the part is principally used. If use is genuinely split, the importer should apply GRI 3(c) — the line that appears last in numerical order — or seek a binding ruling from CBP before importation to avoid reclassification risk.
Yes. Agricultural machinery parts of Chinese origin are subject to Section 301 tariffs, which add to the base MFN duty rate. Parts of Canadian or Mexican origin that meet USMCA rules of origin may qualify for preferential tariff treatment, significantly affecting landed cost. Importers should verify origin documentation and current Section 301 list applicability for each part number before entry.
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Subheading 3 of 11 in heading 8433
Subheading 843390 · $33.3M of $215.7M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8433905045 | Parts of Mowers, Harvest & Thresh Mach, NESOI | $15.1M | 10.79% | 90.41% | $1.6M |
| 8433901090 | Parts of Mowers for Lawns,Parks,Sport Ground NESOI | $8.6M | 24.14% | 76.34% | $2.1M |
| 8433905025 | Parts Haying Mach & Balers,of Harvst & Thresh Mach | $3.3M | 11.71% | 94.20% | $392K |
| 8433905080 | Parts of Mach for Clean,Sort,Grade Fruit Agr Prod | $3.2M | 8.13% | 92.98% | $256K |
| 8433905060 | Parts of Machines for Clean, Sort or Grade Eggs | $1.9M | 12.15% | 100.00% | $230K |
| 8433901010 | Wh/Tr Assm of Mower Fr Lawn, Park or Sport Ground | $1.1M | 34.36% | 94.41% | $390K |
| 8433905010 | Road Wheel of Mowers, Harvest & Thresh Machines | $111K | 13.46% | 100.00% | $15K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$33.3MYoY · Pro
Exports
$65.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Canada and Australia together take 61% of it.
customs district
origin
entry
rate provision · imports
11.4% enters free of duty; the effective duty rate is 14.95%.