Standard International Trade Classification
U.S. exports of Parts for Furnace Burners, Mechanical Stokers, Grates & Ash Dischargers (SITC 74128) totaled $12.4M in August 2026.
Importers of Parts for Furnace Burners, Mechanical Stokers, Grates & Ash Dischargers paid $898K in duties in August 2026, an average duty rate of 10.53% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 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.
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537 import shipments a month
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.
Basic heading 295 of 642 in section 7
Basic heading 74128 · $12.4M of $76.2B
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Exports · August 2026
destination
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$8.5MYoY · free account
Exports
$12.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $103.0M of Parts for Furnace Burners, Mechanical Stokers, Grates & Ash Dischargers.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.