Harmonized System
U.S. imports of AC Generators (Alternators), 375–750 KVA Output (HS 850163) totaled $14.9M in August 2026, imported from 19 countries.
Importers of AC Generators (Alternators), 375–750 KVA Output paid $2.6M in duties in August 2026, an average duty rate of 17.63% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. AC Generators (Alternators), 375–750 KVA Output imports of $14.9M in August 2026 ran 41% above the year-to-date monthly average of $10.5M.
Last updated: August 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.
829 import shipments a month
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.
Subheading 12 of 17 in heading 8501
Subheading 850163 · $14.9M of $1.2B
Trade Directory
List your company under HS 850163 — AC Generators (Alternators), 375–750 KVA Output, so the companies trading it can find you. Be the first supplier listed.
ImportsExports
Imports
$14.9MYoY · free account
Exports
$952KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $117.0M of AC Generators (Alternators), 375–750 KVA Output and exported $9.2M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
India and Mexico together supply 53% of it. Brazil pays 40.0% duty; Mexico 0.0%.
customs district
destination
entry
rate provision · imports
33.9% enters free of duty; duty collected equals 17.63% 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 |
|---|---|---|---|---|---|
| 8501630100 | AC Generators (Alternator) Gt 75 Kva But Lt=375kva | $14.9M | 17.63% | 66.06% | $2.6M |
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 | $952K |
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.