HTS heading 8419 · Chapter 84

HTS 8419: Machinery, plant or laboratory equipment, whether or…

HTS heading 8419 covers machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 8514), for the treatment of materials by a process involving a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilizing, pasteurizing, steaming, drying, evaporating, vaporizing, condensing or cooling, other than machinery or plant of a kind used for domestic purposes; instantaneous or storage water heaters, nonelectric; parts thereof. It has 26 tariff lines with a duty rate; the general (MFN) rates are Free (22 lines), 4.2% (3 lines), 4% (1 line).

Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.

Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.

HTS code

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Country of origin

Customs value (USD)

Mode of transport

Entry date

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Tariff lines and duty rates

HTS code	Description	General	Special	Column 2	Estimate
	Instantaneous or storage water heaters, nonelectric:
8419.11.00.00	Instantaneous gas water heaters[No.]	Free		45%	Estimate →
8419.12.00.00	Solar water heaters[No.]	Free		45%	Estimate →
8419.19.01	Other	Free		45%
8419.19.01.20	Instantaneous water heaters[No.]				Estimate →
8419.19.01.60	Other[No.]				Estimate →
8419.20.00	Medical, surgical or laboratory sterilizers	Free		35%
8419.20.00.10	Medical or surgical sterilizers[No.]				Estimate →
8419.20.00.20	Laboratory sterilizers[No.]				Estimate →
	Dryers:
8419.33	Lyophilisation apparatus, freeze drying units and spray dryers:
8419.33.10.00	For agricultural products[No.]	Free		35%	Estimate →
8419.33.50.00	Other[No.]	Free		35%	Estimate →
8419.34.00.00	Other, for agricultural products[No.]	Free		35%	Estimate →
8419.35	Other, for wood, paper pulp, paper or paperboard
8419.35.10.00	For wood[No.]	Free		35%	Estimate →
8419.35.50.00	Other[No.]	Free		35%	Estimate →
8419.39.02	Other	Free		35%
8419.39.02.70	For foods and beverages[No.]				Estimate →
8419.39.02.80	Other[No.]				Estimate →
8419.40.00	Distilling or rectifying plant	Free		35%
8419.40.00.10	Rotary evaporators[No.]				Estimate →
8419.40.00.90	Other[No.]				Estimate →
8419.50	Heat exchange units:
8419.50.10.00	Brazed aluminum plate-fin heat exchangers[No.]	4.2%	Free (A,AU,BH,C,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)	35%	Estimate →
8419.50.50.00	Other[No.]	Free		35%	Estimate →
8419.60	Machinery for liquefying air or other gases:
8419.60.10.00	Machinery containing brazed aluminum plate-fin heat exchangers[No.]	4.2%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	35%	Estimate →
8419.60.50.00	Other[No.]	Free		35%	Estimate →
	Other machinery, plant or equipment:
8419.81	For making hot drinks or for cooking or heating food:
8419.81.50	Cooking stoves, ranges and ovens	Free		35%
8419.81.50.40	For use in civil aircraft[No.]				Estimate →
8419.81.50.80	Other[No.]				Estimate →
8419.81.90	Other	Free		35%
8419.81.90.40	Of a type used in restaurants, hotels or similar locations[No.]				Estimate →
8419.81.90.80	Other[No.]				Estimate →
8419.89	Other:
8419.89.10.00	For making paper pulp, paper or paperboard[No.]	Free		35%	Estimate →
	Other:
8419.89.60.00	Molten-salt-cooled acrylic acid reactors[No.]	Free		35%	Estimate →
8419.89.95	Other	4.2%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	35%
8419.89.95.10	Heating mantles; drum heaters and heating belts for heating containers[No.]				Estimate →
	Other:
	Designed for cooling:
8419.89.95.20	For food and beverages[No.]				Estimate →
8419.89.95.40	Other[No.]				Estimate →
	Other:
8419.89.95.50	For food and beverages[No.]				Estimate →
8419.89.95.70	For rubber and plastics[No.]				Estimate →
8419.89.95.90	For other materials[No.]				Estimate →
8419.90	Parts:
8419.90.10.00	Of instantaneous or storage water heaters[kg]	Free		45%	Estimate →
8419.90.20.00	Of machinery and plant for making paper pulp, paper or paperboard[kg]	Free		35%	Estimate →
8419.90.30.00	Of heat exchange units[kg]	Free		35%	Estimate →
	Other:
8419.90.50	Of molten-salt-cooled acrylic acid reactors; of medical, surgical or laboratory sterilizers	Free		35%
8419.90.50.40	Of medical, surgical or laboratory sterilizers[kg]				Estimate →
8419.90.50.80	Other[kg]				Estimate →
8419.90.85.00	Of electromechanical tools for working in the hand with self-contained electric motor[kg]	Free		35%	Estimate →
8419.90.95	Other	4%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	35%
8419.90.95.20	Of an apparatus of a type used in restaurants, hotels or similar locations[kg]				Estimate →
8419.90.95.80	Other[kg]				Estimate →

48 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.

Example: base duty and fees on $10000

For HTS 8419.50.10.00 at the general rate of 4.2%, shipped by ocean, before any Chapter 99 tariffs:

Base duty (4.2%)	$420.00
Merchandise Processing Fee (0.3464%, min $34.58)	$34.64
Harbor Maintenance Fee (0.125%)	$12.50
Duty and fees	$467.14

Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.

Special program codes in this heading

A, A*, A+: Generalized System of Preferences (GSP)
AU: U.S.–Australia FTA
BH: U.S.–Bahrain FTA
C: Agreement on Trade in Civil Aircraft
CL: U.S.–Chile FTA
CO: U.S.–Colombia Trade Promotion Agreement
D: African Growth and Opportunity Act (AGOA)
E, E*: Caribbean Basin Economic Recovery Act
IL: U.S.–Israel FTA
JO: U.S.–Jordan FTA
JP: U.S.–Japan Trade Agreement
KR: U.S.–Korea FTA (KORUS)
MA: U.S.–Morocco FTA
OM: U.S.–Oman FTA
P, P+: CAFTA-DR
PA: U.S.–Panama Trade Promotion Agreement
PE: U.S.–Peru Trade Promotion Agreement
S, S+: USMCA (United States–Mexico–Canada Agreement)
SG: U.S.–Singapore FTA

A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.

Frequently asked questions

What is the duty rate for HTS 8419?

Heading 8419 has 26 rate lines. The general (MFN) duty rates are Free (22 lines), 4.2% (3 lines), 4% (1 line). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.

Do Section 301, 232 or 201 tariffs apply to HTS 8419?

It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.

What fees are added to an import under HTS 8419?

Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.