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SITCSection 7
U.S. imports of parts for auxiliary boiler plants and condenser parts (SITC 71192) totaled $11.1M in April 2026, traded with 22 countries.
Importers of Parts for Auxiliary Boiler Plants and Condenser Parts paid $1.1M in duties in April 2026 — an effective duty rate of 14% on $7.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts for Auxiliary Boiler Plants and Condenser Parts imports of $11.1M in April 2026 ran 52% above the year-to-date monthly average of $7.3M.
Last updated: April 2026 dataComponents for economizers, feedwater heaters, soot blowers, and similar auxiliary boiler equipment—as well as replacement parts for steam and vapor power unit condensers—are grouped here. The dual scope of this heading (auxiliary plant parts and condenser parts) means importers must clearly identify the parent equipment in their entry documentation to avoid misclassification into general heat-exchanger or industrial machinery parts headings. Procurement teams in the power and refining sectors rely on accurate classification to manage duty costs and maintain MRO inventory compliance.
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When a part is interchangeable between a condenser and auxiliary boiler equipment, the importer should identify the actual end-use and the equipment for which the part was ordered. If the part is purpose-built for a condenser, it falls under condenser parts; if for auxiliary plant, it falls under auxiliary plant parts. Documentation from the OEM or the maintenance work order supports the correct classification.
Misclassifying these parts under a general heat-exchanger or industrial machinery parts heading can result in underpayment or overpayment of duties, potential CBP penalties for material misstatement, and complications during post-entry audits. Importers should retain engineering specifications and OEM documentation to substantiate the correct heading at the time of entry.
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Monthly import values over time