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U.S. imports of parts for industrial & laboratory furnaces, ovens, and heating equipment (HS 851490) totaled $24.4M in July 2026, traded with 51 countries.
Importers of Parts for Industrial & Laboratory Furnaces, Ovens, and Heating Equipment paid $1.8M in duties in July 2026 — an effective duty rate of 8.6% on $20.2M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataReplacement and OEM parts for the full range of industrial electric furnaces, laboratory ovens, and induction or dielectric heating equipment are captured here, with the US schedule drawing a notable split between microwave oven parts (8514904000) and all other industrial and laboratory furnace and oven parts (8514908000). Japan leads supply under this heading, consistent with its role as a major producer of precision heating equipment whose aftermarket parts flow to US end-users; Germany and Mexico are also significant sources. Correct parts classification requires confirming that the part is solely or principally used with equipment of heading 8514, as parts suitable for multiple headings follow different classification rules.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
860 shipments/mo
Parts classifiable under 8514904000 must be identifiable as components of microwave ovens — such as magnetrons, waveguide assemblies, or turntable motors designed for microwave units. General heating elements, refractory liners, control boards, or structural components for resistance, induction, or arc furnaces fall under 8514908000. When a part is common to both microwave and non-microwave equipment, classification follows the principal-use rule.
Country of origin for duty purposes is determined by where the part itself was manufactured or substantially transformed, not where the parent furnace was made. A replacement heating element manufactured in Mexico for a German-origin furnace would be assessed duties based on Mexican origin. However, if the part is imported alongside the original equipment as an accessory, it may be classified with the main equipment under GRI 3. Trade-remedy applicability (e.g., Section 301 for Chinese-origin parts) is also determined by the part's own origin.
HSChapter 85
Subheading 1 of 8 in heading 8514
Subheading 851490 · $24.4M of $45.7M
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8514908000 | Industrial/Lab Furnace & Oven Parts, NESOI | $19.6M | 8.70% | 74.60% | $1.7M |
| 8514904000 | Microwave Oven Parts | $265K | 14.33% | 100.87% | $38K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8514908000 | Industrial/Lab Furnace & Oven Parts, NESOI | $34.8M |
| 8514904000 | Microwave Oven Parts | $949K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$24.4MYoY · Pro
Exports
$20.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Japan and Mexico together supply 43% of it.
customs district
destination
entry
rate provision · imports
17.0% enters free of duty; the effective duty rate is 7.17%.