Machinery — HTS 8419
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
Chapter 84 › Heading 8419
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 8419 covers non-domestic machinery, plant, and laboratory equipment that treats materials by changing their temperature. Examples of the processes include heating, cooking, drying, sterilizing, pasteurizing, evaporating, distilling, condensing, and cooling. It also includes nonelectric instantaneous or storage water heaters and parts. Furnaces, ovens, and similar equipment covered by heading 8514 are excluded.
This 4-digit heading is a broad category, not the final classification. To reach the correct 8-digit HTSUS code, first identify the equipment’s function and design, then follow the more specific subheadings and statistical subdivisions. The final code commonly distinguishes the type of equipment, the material or product treated, its operating method, or whether it is a complete machine or a part. Classification may require customs-broker or professional review when the equipment has multiple functions or an unusual design.
What to check
- Describe the equipment’s principal function and the exact temperature-change process it performs.
- Confirm that the equipment is for commercial, industrial, or laboratory use rather than a domestic-purpose machine.
- Check whether the article is a complete machine, a dedicated part, or a nonelectric water heater.
- Review the heading exclusions, especially the boundary between heading 8419 and electric furnaces or ovens of heading 8514.
- Read every subheading and statistical suffix, and compare the product’s construction, capacity, materials treated, and operating method with the official HTSUS descriptions.
HTS heading 8419 summary
Machinery is a 4-digit product category containing 5 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 8419.50 | Heat exchange units |
| 8419.60 | Machinery for liquefying air or other gases |
| 8419.90 | Parts |
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 8419.11.00.00 👉 | Instantaneous gas water heaters | Free | — | 45% |
| 8419.12.00.00 👉 | Solar water heaters | Free | — | 45% |
| 8419.19.01 👉 | Other | Free | — | 45% |
| 8419.20.00 👉 | Medical, surgical or laboratory sterilizers | Free | — | 35% |
| 8419.40.00 👉 | Distilling or rectifying plant | Free | — | 35% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 8419?
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. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.