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SITCSection 7
U.S. imports of parts for furnace burners, mechanical stokers, grates & ash dischargers (SITC 74128) totaled $8.6M in April 2026, traded with 33 countries.
Importers of Parts for Furnace Burners, Mechanical Stokers, Grates & Ash Dischargers paid $786K in duties in April 2026 — an effective duty rate of 13% on $6.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataReplacement and aftermarket parts for furnace burners, mechanical stokers, grates, and ash dischargers are critical maintenance inputs for industrial combustion facilities, where unplanned downtime is costly. The heading captures components such as burner nozzles, grate bars, stoker drive assemblies, and ash-handling linkages—items that must be precisely matched to OEM specifications to maintain combustion efficiency and emissions compliance. Classification of individual parts can be contested when a component is also used in non-furnace applications, making a clear bill of materials and technical documentation essential at entry. Consulting a licensed customs broker is advisable when parts serve dual-use functions across multiple equipment categories.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Technical datasheets, OEM part numbers, and engineering drawings that explicitly reference the parent furnace or stoker model are the most effective supporting documents. A supplier declaration confirming the part's sole or principal use in combustion equipment strengthens the classification argument and reduces the risk of reclassification during CBP review.
Not necessarily. Parts headings often carry different duty rates than the complete-equipment headings they support. The applicable rate depends on the specific HTS subheading assigned to each part, which may differ from the rate on the assembled stoker or grate. A tariff classification analysis for each part number is recommended before large-volume procurement.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $960K | $2.1M | +$1.1M |
| GERMANY | $1.4M | $537K | -$829K |
| MEXICO | $1.6M | $198K | -$1.4M |
| CHINA | $704K | $220K | -$484K |
| CZECH REPUBLIC | $817K | $5K | -$813K |
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Monthly import values over time