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HTS 8402Steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); super-heated water boilers; parts thereof

Product or HTS code

Rate lines6

Code	Description	General	Special	Column 2	Units	Calculate
	Steam or other vapor generating boilers
8402.11.00.00	8402.11.00.00Watertube boilers with a steam production exceeding 45 t per hourGeneral 5.2% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45% · t	5.2%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%	t
8402.12.00.00	8402.12.00.00Watertube boilers with a steam production not exceeding 45 t per hourGeneral 4.3% · Special Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45% · t	4.3%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%	t
8402.19.00.00	8402.19.00.00Other vapor generating boilers, including hybrid boilersGeneral 5.2% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45% · t	5.2%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%	t
8402.20.00.00	8402.20.00.00Super-heated water boilersGeneral 3.3% · Special Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45% · t	3.3%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%	t
8402.90.00	8402.90.00PartsGeneral 4.3% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45%	4.3%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%
8402.90.00.10	8402.90.00.10Heat exchangersGeneral 4.3% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45% · t	4.3%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%	t
8402.90.00.90	8402.90.00.90OtherGeneral 4.3% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 45% · kg	4.3%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	45%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Canada24.77% of imports	South Korea10.96% of imports	Mexico10.12% of imports	Vietnam10.06% of imports	Thailand9.91% of imports	China8.94% of imports	Italy6.68% of imports	Germany4.59% of imports	Romania2.81% of imports	Israel2.5% of imports
8402.11.00.00Watertube boilers with a steam production exceeding 45 t per hour	15.2%9903.05.29	12.5%9903.05.71	15.2%9903.05.55	17.7%9903.05.84	17.7%9903.05.77	42.7%9903.05.319903.88.01	10%9903.05.39	10%9903.05.39	10%9903.05.39	17.7%9903.05.47
8402.12.00.00Watertube boilers with a steam production not exceeding 45 t per hour	14.3%9903.05.29	12.5%9903.05.71	14.3%9903.05.55	16.8%9903.05.84	16.8%9903.05.77	41.8%9903.05.319903.88.01	10%9903.05.39	10%9903.05.39	10%9903.05.39	16.8%9903.05.47
8402.19.00.00Other vapor generating boilers, including hybrid boilers	15.2%9903.05.29	12.5%9903.05.71	15.2%9903.05.55	17.7%9903.05.84	17.7%9903.05.77	42.7%9903.05.319903.88.01	10%9903.05.39	10%9903.05.39	10%9903.05.39	17.7%9903.05.47
8402.20.00.00Super-heated water boilers	13.3%9903.05.29	12.5%9903.05.71	13.3%9903.05.55	15.8%9903.05.84	15.8%9903.05.77	40.8%9903.05.319903.88.01	10%9903.05.39	10%9903.05.39	10%9903.05.39	15.8%9903.05.47
8402.90.00.10Heat exchangers	14.3%9903.05.29	12.5%9903.05.71	14.3%9903.05.55	16.8%9903.05.84	16.8%9903.05.77	41.8%9903.05.319903.88.01	10%9903.05.39	10%9903.05.39	10%9903.05.39	16.8%9903.05.47
8402.90.00.90Other	14.3%9903.05.29	12.5%9903.05.71	14.3%9903.05.55	16.8%9903.05.84	16.8%9903.05.77	41.8%9903.05.319903.88.01	10%9903.05.39	10%9903.05.39	10%9903.05.39	16.8%9903.05.47

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).