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HSChapter 85
U.S. imports of ac generators (alternators), 375–750 kva output (HS 850163) totaled $16.5M in July 2026, traded with 19 countries.
Importers of AC Generators (Alternators), 375–750 KVA Output paid $2.0M in duties in July 2026 — an effective duty rate of 21% on $9.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. AC Generators (Alternators), 375–750 KVA Output imports of $16.5M in July 2026 ran 66% above the year-to-date monthly average of $9.9M.
Last updated: July 2026 dataMid-range alternators in the 375–750 KVA band are workhorses for industrial standby power, large commercial facilities, and utility interconnection applications where output demands exceed portable generator capacity. Mexico leads US import supply for this heading, followed by India and China — the latter's shipments may be subject to Section 301 tariffs, a key landed-cost variable for procurement teams. The US tariff schedule consolidates this HS6 heading into a single 10-digit line, 8501630100, so classification disputes typically center on output measurement methodology rather than line selection. Buyers should confirm rated versus prime power output ratings when classifying units near the 375 KVA or 750 KVA thresholds.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
715 shipments/mo
Customs classification is based on the generator's rated maximum continuous output in KVA as stated by the manufacturer. Importers should ensure technical documentation (nameplate data, test certificates) clearly states the rated output to avoid reclassification at the border, particularly for units marketed with both prime and standby ratings that straddle a threshold.
Yes. AC generators imported from China may be subject to Section 301 tariffs in addition to the standard MFN duty rate. Importers should verify the current Section 301 list applicability and any exclusion orders with a licensed customs broker before finalizing sourcing decisions.
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ImportsExports
Imports
$16.5MYoY · Pro
Exports
$825KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 8501630100 | AC Generators (Alternator) Gt 75 Kva But Lt=375kva | $16.5M | 11.91% | 57.64% | $2.0M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8501630100 | AC Generators (Alternator) Gt 75 Kva But Lt=375kva | $825K |
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.
Imports · July 2026
origin
Mexico and China together supply 51% of it.
customs district
destination
entry
rate provision · imports
42.4% enters free of duty; the effective duty rate is 11.91%.