Chapter 84Machinery & Electronics
Industrial Machinery — US Tariff Rates
US tariff rates for nuclear reactors, boilers, machinery, and mechanical appliances. HTS codes and import duties for industrial machines, engines, pumps, turbines, and manufacturing equipment. Section 301 China tariffs apply.
HTS Codes
108
Additional Tariffs
Section 301 (China)Section 122
⚠
Additional Tariffs Apply to This Chapter
Section 301 tariffs apply to imports from China. Use our Landed Cost Calculator for a full duty breakdown by country of origin.
HTS Codes in Chapter 84 — Industrial Machinery
| HTS Code | Description | Base Duty | Tariff Flags | Actions |
|---|---|---|---|---|
| 8401.10.00.00 | Nuclear reactors | 3.3% | §301 +25%§122 +15% | |
| 8401.20.00.00 | Machinery and apparatus for isotopic separation, and parts thereof | 2.6% | §301 +25%§122 +15% | |
| 8401.30.00.00 | Fuel elements (cartridges), non-irradiated, and parts thereof | 3.3% | §301 +25%§122 +15% | |
| 8401.40.00.00 | Parts of nuclear reactors | 3.3% | §301 +25%§122 +15% | |
| 8402.11.00.00 | Watertube boilers with a steam production exceeding 45 t per hour | 5.2% | §301 +25%§122 +15% | |
| 8402.12.00.00 | Watertube boilers with a steam production not exceeding 45 t per hour | 4.3% | §301 +25%§122 +15% | |
| 8402.19.00.00 | Other vapor generating boilers, including hybrid boilers | 5.2% | §301 +25%§122 +15% | |
| 8402.20.00.00 | Super-heated water boilers | 3.3% | §301 +25%§122 +15% | |
| 8402.90.00 | Parts | 4.3% | §301 +25%§122 +15% | |
| 8403.10.00.00 | Boilers | Free | §301 +25%§122 +15% | |
| 8403.90.00.00 | Parts | Free | §301 +25%§122 +15% | |
| 8404.10.00 | Auxiliary plant for use with boilers of heading 8402 or 8403 | 3.5% | §301 +25%§122 +15% | |
| 8404.20.00.00 | Condensers for steam or other vapor power units | 5% | §301 +25%§122 +15% | |
| 8404.90.00.00 | Parts | 3.5% | §301 +25%§122 +15% | |
| 8405.10.00.00 | Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers | Free | §301 +25%§122 +15% | |
| 8405.90.00.00 | Parts | Free | §301 +25%§122 +15% | |
| 8406.10.10.00 | Steam turbines | 6.7% | §301 +25%§122 +15% | |
| 8406.10.90.00 | Other | Free | §301 +25%§122 +15% | |
| 8406.81.10 | Steam turbines | 6.7% | §301 +25%§122 +15% | |
| 8406.81.90.00 | Other | Free | §301 +25%§122 +15% | |
| 8406.82.10 | Steam turbines | 6.7% | §301 +25%§122 +15% | |
| 8406.82.90.00 | Other | Free | §301 +25%§122 +15% | |
| 8406.90.20.00 | Rotors, finished for final assembly | 5% | §301 +25%§122 +15% | |
| 8406.90.30.00 | Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery | 5% | §301 +25%§122 +15% | |
| 8406.90.40.00 | Blades, rotating or stationary | 5% | §301 +25%§122 +15% | |
| 8406.90.45 | Other | 5% | §301 +25%§122 +15% | |
| 8406.90.50.00 | Rotors, finished for final assembly | Free | §301 +25%§122 +15% | |
| 8406.90.60.00 | Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery | Free | §301 +25%§122 +15% | |
| 8406.90.70.00 | Blades, rotating or stationary | Free | §301 +25%§122 +15% | |
| 8406.90.75.00 | Other | Free | §301 +25%§122 +15% | |
| 8407.10.00 | Aircraft engines | Free | §301 +25%§122 +15% | |
| 8407.21.00 | Outboard motors | Free | §301 +25%§122 +15% | |
| 8407.29.00 | Other | Free | §301 +25%§122 +15% | |
| 8407.31.00 | Of a cylinder capacity not exceeding 50 cc | Free | §301 +25%§122 +15% | |
| 8407.32.10.00 | To be installed in tractors suitable for agricultural use | Free | §301 +25%§122 +15% | |
| 8407.32.20 | To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | Free | §301 +25%§122 +15% | |
| 8407.32.90 | Other | Free | §301 +25%§122 +15% | |
| 8407.33.10 | To be installed in tractors suitable for agricultural use | Free | §301 +25%§122 +15% | |
| 8407.33.30 | To be installed in vehicles specially designed for traveling on snow, golf carts, non-amphibious all-terrain vehicles and burden carriers | Free | §301 +25%§122 +15% | |
| 8407.33.60 | Other | 2.5% | §301 +25%§122 +15% | |
| 8407.33.90 | Other | Free | §301 +25%§122 +15% | |
| 8407.34.05 | To be installed in tractors suitable for agricultural use | Free | §301 +25%§122 +15% | |
| 8407.34.14.00 | Used or rebuilt | 2.5% | §301 +25%§122 +15% | |
| 8407.34.18.00 | Other | 2.5% | §301 +25%§122 +15% | |
| 8407.34.25.00 | Other | Free | §301 +25%§122 +15% | |
| 8407.34.35 | To be installed in tractors suitable for agricultural use | Free | §301 +25%§122 +15% | |
| 8407.34.44.00 | Used or rebuilt | 2.5% | §301 +25%§122 +15% | |
| 8407.34.48.00 | Other | 2.5% | §301 +25%§122 +15% | |
| 8407.34.55.00 | Other | Free | §301 +25%§122 +15% | |
| 8407.90.10 | To be installed in agricultural or horticultural machinery or equipment | Free | §301 +25%§122 +15% | |
| 8407.90.90 | Other | Free | §301 +25%§122 +15% | |
| 8408.10.00 | Marine propulsion engines | 2.5% | §301 +25%§122 +15% | |
| 8408.20.10 | To be installed in tractors suitable for agricultural use | Free | §301 +25%§122 +15% | |
| 8408.20.20.00 | To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | 2.5% | §301 +25%§122 +15% | |
| 8408.20.90.00 | Other | 2.5% | §301 +25%§122 +15% | |
| 8408.90.10 | To be installed in agricultural or horticultural machinery or equipment | Free | §301 +25%§122 +15% | |
| 8408.90.90 | Other | Free | §301 +25%§122 +15% | |
| 8409.10.00 | For aircraft engines | Free | §301 +25%§122 +15% | |
| 8409.91.10 | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | Free | §301 +25%§122 +15% | |
| 8409.91.30.00 | Aluminum cylinder heads | 2.5% | §301 +25%§122 +15% | |
| 8409.91.50 | Other | 2.5% | §301 +25%§122 +15% | |
| 8409.91.92 | For marine propulsion engines | 2.5% | §301 +25%§122 +15% | |
| 8409.91.99 | Other | 2.5% | §301 +25%§122 +15% | |
| 8409.99.10 | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | Free | §301 +25%§122 +15% | |
| 8409.99.91 | To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | 2.5% | §301 +25%§122 +15% | |
| 8409.99.92 | For marine propulsion engines | 2.5% | §301 +25%§122 +15% | |
| 8409.99.99 | Other | Free | §301 +25%§122 +15% | |
| 8410.11.00.00 | Of a power not exceeding 1,000 kW | 3.8% | §301 +25%§122 +15% | |
| 8410.12.00.00 | Of a power exceeding 1,000 kW but not exceeding 10,000 kW | 3.8% | §301 +25%§122 +15% | |
| 8410.13.00.00 | Of a power exceeding 10,000 kW | 3.8% | §301 +25%§122 +15% | |
| 8410.90.00.00 | Parts, including regulators | 3.8% | §301 +25%§122 +15% | |
| 8411.11.40.00 | Aircraft turbines | Free | §301 +25%§122 +15% | |
| 8411.11.80.00 | Other | Free | §301 +25%§122 +15% | |
| 8411.12.40.00 | Aircraft turbines | Free | §301 +25%§122 +15% | |
| 8411.12.80.00 | Other | Free | §301 +25%§122 +15% | |
| 8411.21.40.00 | Aircraft turbines | Free | §301 +25%§122 +15% | |
| 8411.21.80.00 | Other | Free | §301 +25%§122 +15% | |
| 8411.22.40.00 | Aircraft turbines | Free | §301 +25%§122 +15% | |
| 8411.22.80.00 | Other | Free | §301 +25%§122 +15% | |
| 8411.81.40.00 | Aircraft turbines | Free | §301 +25%§122 +15% | |
| 8411.81.80 | Other | 2.5% | §301 +25%§122 +15% | |
| 8411.82.40.00 | Aircraft turbines | Free | §301 +25%§122 +15% | |
| 8411.82.80 | Other | 2.5% | §301 +25%§122 +15% | |
| 8411.91.10 | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | Free | §301 +25%§122 +15% | |
| 8411.91.90 | Other | Free | §301 +25%§122 +15% | |
| 8411.99.10 | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | Free | §301 +25%§122 +15% | |
| 8411.99.90 | Other | 2.4% | §301 +25%§122 +15% | |
| 8412.10.00 | Reaction engines other than turbojets | Free | §301 +25%§122 +15% | |
| 8412.21.00 | Linear acting (cylinders) | Free | §301 +25%§122 +15% | |
| 8412.29.40.00 | Hydrojet engines for marine propulsion | Free | §301 +25%§122 +15% | |
| 8412.29.80 | Other | Free | §301 +25%§122 +15% | |
| 8412.31.00 | Linear acting (cylinders) | Free | §301 +25%§122 +15% | |
| 8412.39.00 | Other | Free | §301 +25%§122 +15% | |
| 8412.80.10.00 | Spring-operated and weight-operated motors | Free | §301 +25%§122 +15% | |
| 8412.80.90.00 | Other | Free | §301 +25%§122 +15% | |
| 8412.90.10.00 | Of hydrojet engines for marine propulsion | Free | §301 +25%§122 +15% | |
| 8412.90.90 | Other | Free | §301 +25%§122 +15% | |
| 8413.11.00.00 | Pumps for dispensing fuel or lubricants, of the type used in filling-stations or in garages | Free | §301 +25%§122 +15% | |
| 8413.19.00.00 | Other | Free | §301 +25%§122 +15% | |
| 8413.20.00.00 | Hand pumps, other than those of subheading 8413.11 or 8413.19 | Free | §301 +25%§122 +15% | |
| 8413.30.10.00 | Fuel-injection pumps for compression-ignition engines | 2.5% | §301 +25%§122 +15% | |
| 8413.30.90 | Other | 2.5% | §301 +25%§122 +15% | |
| 8413.40.00.00 | Concrete pumps | Free | §301 +25%§122 +15% | |
| 8413.50.00 | Other reciprocating positive displacement pumps | Free | §301 +25%§122 +15% | |
| 8413.60.00 | Other rotary positive displacement pumps | Free | §301 +25%§122 +15% | |
| 8413.70.10.00 | Stock pumps imported for use with machines for making cellulosic pulp, paper or paperboard | Free | §301 +25%§122 +15% | |
| 8413.70.20 | Other | Free | §301 +25%§122 +15% | |
| 8413.81.00 | Pumps | Free | §301 +25%§122 +15% |
Related HTS Chapters
About HTS Chapter 84 — Industrial Machinery
HTS Chapter 84 covers industrial machinery under the US Harmonized Tariff Schedule (HTS). The HTS is maintained by the US International Trade Commission (USITC) and updated periodically to reflect trade policy changes including executive orders, Section 232 national security tariffs, Section 301 China tariffs, and Section 122 emergency tariffs.
To import goods under Chapter 84, US importers must declare the correct 10-digit HTS code on their Customs entry. The duty rate shown is the general (MFN) rate. Special rates may apply under free trade agreements (FTAs) such as USMCA, CPTPP, or bilateral agreements. Use the FTA Checker to see if preferential rates apply to your shipment.
Anti-dumping (AD) and countervailing duty (CVD) orders may impose additional duties on specific products and countries of origin beyond the rates shown here. Always consult with a licensed customs broker for classification decisions.