U.S. exports of Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery (HS 843390) totaled $70.9M in August 2026.
Importers of Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery paid $5.2M in duties in August 2026, an average duty rate of 16.76% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery imports of $30.9M in August 2026 ran 39% below the year-to-date monthly average of $50.8M.
Last updated: August 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.
2.8K import shipments a month
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.
Subheading 2 of 11 in heading 8433
Subheading 843390 · $70.9M of $285.0M
ImportsExports
Imports
$30.9MYoY · free account
Exports
$70.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $698.6M of Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery and exported $885.2M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Canada and Australia together take 60% of it.
customs district
origin
entry
rate provision · imports
11.7% enters free of duty; duty collected equals 16.76% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8433905045 | Parts of Mowers, Harvest & Thresh Mach, NESOI | $13.8M | 12.75% | 89.08% | $1.8M |
| 8433901090 | Parts of Mowers for Lawns, Parks, Sport Ground NESOI | $8.5M | 26.58% | 75.54% | $2.3M |
| 8433905080 | Parts of Mach for Clean, Sort, Grade Fruit Agr Prod | $3.1M | 5.89% | 94.93% | $184K |
| 8433905025 | Parts Haying Mach & Balers, of Harvst & Thresh Mach | $2.9M | 10.84% | 86.63% | $315K |
| 8433905060 | Parts of Machines for Clean, Sort or Grade Eggs | $1.7M | 18.79% | 100.00% | $321K |
| 8433901010 | Wh/Tr Assm of Mower Fr Lawn, Park or Sport Ground | $786K | 39.94% | 96.19% | $314K |
| 8433905010 | Road Wheel of Mowers, Harvest & Thresh Machines | $153K | 23.14% | 100.00% | $36K |
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.
Trade Directory
List your company under HS 843390 — Parts for Harvesting, Threshing, Mowing, Baling, and Produce-Sorting Machinery, so the companies trading it can find you. Be the first supplier listed.