Harmonized Tariff Schedule of the United States · HTS code · HS 8503.00
8503.00.45: For generators suitable for use on aircraft
Electric motor and generator parts
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 8503.00 Parts suitable for use solely or principally with the machines of heading 8501 or 8502:
- Stators and rotors for the goods of heading 8501:
- 8503.00.45 For generators suitable for use on aircraft
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
No additional measures recorded for this origin.
Same subheading in other tariffs
8503.00 Parts suitable for use solely or principally with the machines of heading 8501 or 8502
UK 2% Third-country duty 22 tariff lines 
EU 2.7% Third-country duty 4 tariff lines 
Türkiye 2.7% Third-country duty 12 tariff lines 
Canada Free Third-country duty 8 tariff lines 
Mexico Free – 5% Third-country duty 7 tariff lines · average 4.3% 
Brazil 12.6% – 20% Third-country duty 2 tariff lines · average 16.3% 
Argentina 12.6% Third-country duty 2 tariff lines 
Peru Free Third-country duty 1 tariff line 
New Zealand Free – 5% Third-country duty 10 tariff lines · average 4% 
Japan Free Third-country duty 1 tariff line 
Taiwan 1% Third-country duty 3 tariff lines 
GCC 5% Third-country duty 6 tariff lines 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 3% Third-country duty 4 tariff lines 
Nigeria 5% Third-country duty 1 tariff line USA lines: 8503.00
- 8503.00.20Parts suitable for use solely or principally with: commutators
- 8503.00.35For motors of under 18.65 W
- 8503.00.45For generators suitable for use on aircraft
- 8503.00.65Stators and rotors for the goods of heading 8501: other
- 8503.00.75For motors of under 18.65 W
- 8503.00.90For generators suitable for use on aircraft
- 8503.00.95Parts suitable for use solely or principally with: other, other
Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N362523 U.S. CBP
The tariff classification of rotor core from China
- H288213 U.S. CBP
Application for Further Review of Protest Nos. 4601-17-101789; Classification of Anode and Cathode Components of a Solid Oxide Fuell Cell Machine ATTN Dirik J. Lolkus, Supervisory Import Specialist
- N362016 U.S. CBP
The tariff classification of a lamination core and a shaft from South Korea
- N360627 U.S. CBP
The tariff classification of parts for motors and sensors from various countries
13 rulings in total for this code
Legal notes
In the Harmonized Tariff Schedule of the United States, 8503.00.45 is one of 7 lines under subheading 8503.00, parts suitable for use solely or principally with the machines of heading 8501….
The general duty is free, and quantities are declared in p/st.
For the same subheading, the UK duty is 2%, the EU duty is 2.7%, the Türkiye duty is 2.7%, the Canada duty is free, the Mexico duty is 0%–5%, the Brazil duty is 12.6%–20%, the Argentina duty is 12.6%, the Peru duty is free, the New Zealand duty is 0%–5%, the Japan duty is free, the Taiwan duty is 1%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3% and the Nigeria duty is 5%.
The United States imported goods of subheading 8503.00 worth US$4bn in 2024; the largest supplier was Japan.
Questions and answers
What is the USA import duty for HTS code 8503.00.45?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is p/st. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 8503.00 as a whole, the largest supplier in 2024 was Japan (US$824m), followed by Mexico.