# HTS 8503: Parts suitable for use solely or principally with the machines of heading 8501 or 8502:

https://geopax.app/tariffs/catalog/85/8503

Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=8503). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 8503: Parts suitable for use solely or principally with the machines of heading 8501 or 8502:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 8503.00 | Parts suitable for use solely or principally with the machines of heading 8501 or 8502: |  |  |  |  |
| 8503.00.20.00 |   Commutators | 2.4% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | No. |
|  |   Stators and rotors for the goods of heading 8501: |  |  |  |  |
| 8503.00.35.00 |     For motors of under 18.65 W | 6.5% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 90% | No. |
| 8503.00.45.00 |     For generators suitable for use on aircraft | Free |  | 35% | No. |
| 8503.00.65.00 |     Other | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | No. |
|  |   Other: |  |  |  |  |
| 8503.00.75.00 |     For motors of under 18.65 W | 6.5% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 90% | No. |
| 8503.00.90.00 |     For generators suitable for use on aircraft | Free |  | 35% | No. |
| 8503.00.95 |     Other | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |  |
| 8503.00.95.20 |       Parts of motors | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | kg |
|  |       Parts of generators: | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |  |
| 8503.00.95.46 |         For AC generators (alternators) classified in statistical reporting number 8501.64.0110 | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | kg |
| 8503.00.95.50 |         Other | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | kg |
|  |       Other: | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |  |
| 8503.00.95.70 |         Parts of wind-powered generating sets classified in subheading 8502.31.00 | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | kg |
| 8503.00.95.80 |         Other | 3% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | kg |