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

Product or HTS code

Rate lines11

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

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Japan20.43% of imports	Mexico17.98% of imports	Germany15.66% of imports	China9.85% of imports	Canada8.93% of imports	France5.88% of imports	India4.03% of imports	Taiwan2.84% of imports	United Kingdom1.72% of imports	Singapore1.62% of imports
8503.00.20.00Commutators	12.5%9903.05.49	12.4%9903.05.55	10%9903.05.39	39.9%9903.05.319903.88.01	12.4%9903.05.29	10%9903.05.39	12.4%9903.05.44	10%9903.05.76	12.4%9903.05.81	14.9%9903.05.68
8503.00.35.00For motors of under 18.65 W	VariesDepends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 31.5%9903.88.01Depends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 6.5%Depends on product facts	From 6.5%Depends on product facts
8503.00.45.00For generators suitable for use on aircraft	12.5%9903.05.49	10%9903.05.55	10%9903.05.39	37.5%9903.05.319903.88.01	10%9903.05.29	10%9903.05.39	10%9903.05.44	10%9903.05.76	10%9903.05.81	12.5%9903.05.68
8503.00.65.00Other	VariesDepends on product facts	From 3%Depends on product facts	VariesDepends on product facts	From 28%9903.88.01Depends on product facts	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product facts	From 3%Depends on product facts
8503.00.75.00For motors of under 18.65 W	VariesDepends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 31.5%9903.88.01Depends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 6.5%Depends on product facts	From 6.5%Depends on product facts
8503.00.90.00For generators suitable for use on aircraft	12.5%9903.05.49	10%9903.05.55	10%9903.05.39	37.5%9903.05.319903.88.01	10%9903.05.29	10%9903.05.39	10%9903.05.44	10%9903.05.76	10%9903.05.81	12.5%9903.05.68
8503.00.95.20Parts of motors	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 28%9903.88.02Depends on product factsAD/CVD may apply	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 3%Depends on product facts	From 3%Depends on product facts
8503.00.95.46For AC generators (alternators) classified in statistical reporting number 8501.64.0110	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 28%9903.88.02Depends on product factsAD/CVD may apply	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 3%Depends on product facts	From 3%Depends on product facts
8503.00.95.50Other	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 28%9903.88.02Depends on product factsAD/CVD may apply	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 3%Depends on product facts	From 3%Depends on product facts
8503.00.95.70Parts of wind-powered generating sets classified in subheading 8502.31.00	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 28%9903.88.02Depends on product factsAD/CVD may apply	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 3%Depends on product facts	From 3%Depends on product facts
8503.00.95.80Other	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 28%9903.88.02Depends on product factsAD/CVD may apply	From 3%Depends on product facts	VariesDepends on product facts	From 3%Depends on product factsAD/CVD may apply	VariesDepends on product facts	From 3%Depends on product facts	From 3%Depends on product facts

Total duty on a $10,000 ocean shipment entered 2026-10-13, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).