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HSChapter 85
U.S. imports of ac generators (alternators), 375–750 kva output (HS 850163) totaled $9.0M in April 2026, traded with 18 countries.
Importers of AC Generators (Alternators), 375–750 KVA Output paid $679K in duties in April 2026 — an effective duty rate of 19% on $3.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8501630100 | AC GENERATORS (ALTERNATOR) GT 75 KVA BUT LT=375KVA | $9.0M | 18.65% | $679K |
AC GENERATORS (ALTERNATOR) GT 75 KVA BUT LT=375KVA
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8501630100 | AC GENERATORS (ALTERNATOR) GT 75 KVA BUT LT=375KVA | $863K |
AC GENERATORS (ALTERNATOR) GT 75 KVA BUT LT=375KVA
77 no
MACH FOR RECP/CONVR/TRANS/REGN OF VOICE/IMAGE/DATA
HS 851762
SOLID-STATE NON-VOL SEMICONDUCTOR STORAGE DEVICES
HS 852351
SMARTPHONES
HS 851713
PROCESSORS AND CONTROLLERS, ELECTRONIC INTEG CIRCT
HS 854231
CONTROLS ETC W ELECT APPR F ELECT CONT NOV 1000 V
HS 853710
STATIC CONVERTERS; ADP POWER SUPPLIES
HS 850440
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $2.5M | $138K | -$2.4M |
| NEWARK, NJ | $2.0M | -- | -$2.0M |
| HILDAGO, TX | $1.5M | -- | -$1.5M |