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HSChapter 84
U.S. imports of parts of air conditioning machines (nesoi) (HS 841590) totaled $832.2M in April 2026, traded with 57 countries.
Importers of Parts of Air Conditioning Machines (NESOI) paid $171.6M in duties in April 2026 — an effective duty rate of 25% on $687.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataChina-origin parts under this heading are subject to Section 301 tariffs, making supplier diversification a live concern for HVAC importers. The US tariff schedule breaks this heading into highly specific lines covering chassis and outer cabinets (8415904000), copper and non-copper evaporator coils (8415908010, 8415908020, 8415908025), automotive AC parts (8415908045), heat pump parts by material (8415908050, 8415908065, 8415908070), and residual AC parts (8415908085, 8415909000). Mexico leads supply, followed by China and Thailand, reflecting deep North American HVAC manufacturing integration alongside Asian sourcing. Correct classification hinges on whether the part is dedicated to a heat pump, an automotive system, or a conventional AC unit, as each has its own tariff line.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Classification turns on the equipment the coil is designed for. Coils dedicated to conventional air conditioning units fall under the evaporator coil lines (8415908010–8415908025), while coils designed for heat pumps are directed to the heat pump parts lines (8415908050–8415908070). Dual-function components may require a binding ruling from CBP. Consult a licensed customs broker for guidance on specific components.
Yes. Parts of air conditioning machines originating in China are generally subject to Section 301 tariffs. Importers sourcing from Mexico or Thailand may avoid this exposure, which partly explains Mexico's position as the leading supplier under this heading.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8415908085 | PARTS OF AIR CONDITIONING MACHINES, NESOI | $302.1M | 24.49% | $64.9M |
| 8415908070 | PARTS OF HEAT PUMPS, NESOI | $294.0M | 25.49% | $68.5M |
| 8415908045 | PARTS OF AUTOMOTIVE AIR CONDITIONERS | $162.8M | 24.35% | $22.6M |
| 8415908020 | AIR CONDITIONING EVAPORATOR COILS, NESOI | $41.2M | 25.83% | $9.3M |
| 8415908050 | PARTS OF HEAT PUMPS, OF COPPER OR COPPER ALLOYS | $22.7M | 24.90% | $4.0M |
| 8415908010 | AIR CNDITIONING EVPRTR COILS,OF COPPER/CPPER ALLYS | $6.2M | 27.04% | $1.4M |
| 8415904000 | CHASSIS,CHASSIS BASES & OUTER CABINET,PRT OF A/CON | $3.1M | 24.80% | $715K |
| 8415908025 | AIR CONDITIONING EVAPORATOR COILS | $0 | -- | -- |
| 8415908065 | PARTS OF HEAT PUMPS | $0 | -- | -- |
PARTS OF AIR CONDITIONING MACHINES, NESOI
PARTS OF HEAT PUMPS, NESOI
PARTS OF AUTOMOTIVE AIR CONDITIONERS
AIR CONDITIONING EVAPORATOR COILS, NESOI
PARTS OF HEAT PUMPS, OF COPPER OR COPPER ALLOYS
AIR CNDITIONING EVPRTR COILS,OF COPPER/CPPER ALLYS
CHASSIS,CHASSIS BASES & OUTER CABINET,PRT OF A/CON
AIR CONDITIONING EVAPORATOR COILS
PARTS OF HEAT PUMPS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8415909000 | PARTS, NESOI, OF AIR CONDITIONING MACHINES | $108.2M |
| 8415908025 | AIR CONDITIONING EVAPORATOR COILS | $4.0M |
PARTS, NESOI, OF AIR CONDITIONING MACHINES
3.5M kg
AIR CONDITIONING EVAPORATOR COILS
8.5K no
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $316.1M | $27.4M | -$288.7M |
| Georgia | $84.4M | $2.3M | -$82.1M |
| California | $75.5M | $7.7M | -$67.9M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $278.4M | $17.2M | -$261.3M |
| LOS ANGELES, CA | $77.3M | -- | -$77.3M |
| HOUSTON, TX | $72.9M | $1.5M | -$71.4M |