Key facts
- HS subheading
- 8503.00
- National lines
- 11
- Tariff
- United States
- Chapter
- 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles
Summary
The United States tariff splits HS 8503.00 (parts suitable for use solely or principally with the machines of heading 85.01 or 85.02) into 11 national lines: 8503.00.20.00 (commutators), 8503.00.35.00 (for motors of under 18.65 W), 8503.00.45.00 (for generators suitable for use on aircraft), 8503.00.65.00 (other) and 7 others.
United States lines under 8503.00
The United States tariff splits HS 8503.00 (parts suitable for use solely or principally with the machines of heading 85.01 or 85.02) into 11 national lines: 8503.00.20.00 (commutators), 8503.00.35.00 (for motors of under 18.65 W), 8503.00.45.00 (for generators suitable for use on aircraft), 8503.00.65.00 (other) and 7 others.
- 8503.00.20.00CommutatorsDuty: 2.4%
- 8503.00.35.00For motors of under 18.65 WDuty: 6.5%
- 8503.00.45.00For generators suitable for use on aircraftDuty: Free
- 8503.00.65.00OtherDuty: 3%
- 8503.00.75.00For motors of under 18.65 WDuty: 6.5%
- 8503.00.90.00For generators suitable for use on aircraftDuty: Free
- 8503.00.95.20Parts of motorsDuty: 3%
- 8503.00.95.46For AC generators (alternators) classified in statistical reporting number 8501.64.0110Duty: 3%
- 8503.00.95.50OtherDuty: 3%
- 8503.00.95.70Parts of wind-powered generating sets classified in subheading 8502.31.00Duty: 3%
- 8503.00.95.80OtherDuty: 3%
In other countries
No other national tariff on border.bot has live lines under 8503.00 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 8503.00?
The United States tariff splits HS 8503.00 (parts suitable for use solely or principally with the machines of heading 85.01 or 85.02) into 11 national lines: 8503.00.20.00 (commutators), 8503.00.35.00 (for motors of under 18.65 W), 8503.00.45.00 (for generators suitable for use on aircraft), 8503.00.65.00 (other) and 7 others.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: