U.S. exports of combine harvester-threshers (HS 843351) totaled $109.7M in August 2026.
Importers of Combine Harvester-Threshers paid $720K in duties in August 2026, an effective tariff rate of 11.31% of the $6.4M imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataCombines — machines that simultaneously reap, thresh, and clean grain crops in a single field pass — are split at the 10-digit level between self-propelled units (8433510010) and non-self-propelled (tractor-drawn) models (8433510090), with self-propelled combines representing the overwhelming majority of commercial trade. Belgium leads US imports under this heading, reflecting the global manufacturing footprint of major combine brands with European assembly operations, followed by Italy and Germany. Given the high unit values involved, importers should pay close attention to whether a machine is complete-as-imported or whether headers and other attachments are shipped separately, as that affects both classification and valuation.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
32 shipments/mo
Combine headers (cutting platforms) imported together with the combine as a complete unit are generally classified with the machine under 843351. Headers imported separately are typically classified as parts under heading 843390. The method of shipment and whether the header is invoiced as part of the machine or as a standalone item both influence the classification and valuation analysis.
A formal entry is required given the high unit values typical of self-propelled combines. Required documentation generally includes a commercial invoice with full machine specifications (model, serial number, engine output, and country of manufacture), a bill of lading, and packing list. If claiming USMCA or other preferential origin, a manufacturer's certification of origin is also needed. EPA engine emission compliance documentation may be required for the diesel engine.
HSChapter 84
ImportsExports
Imports
$6.4MYoY · free account
Exports
$109.7MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $69.8M of Combine Harvester-Threshers.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
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Subheading 1 of 11 in heading 8433
Subheading 843351 · $109.7M of $285.0M
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 |
|---|---|---|---|---|---|
| 8433510010 | Combine Harvester-Threshers, Self-Propelled | $5.4M | 11.62% | 77.47% | $633K |
| 8433510090 | Combine Harvester-Threshers, Except Self-Propelled | $921K | 9.49% | 100.00% | $87K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8433510010 | Combine Harvester-Threshers, Self-Propelled | $108.6M |
| 8433510090 | Combine Harvester-Threshers, Except Self-Propelled | $1.1M |
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.
Exports · August 2026
destination
Canada and Australia together take 92% of it.
customs district
origin
entry
rate provision · imports
19.3% enters free of duty; duty collected equals 11.31% of total import value.