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Gas Generator Heat Exchanger Coils

Stainless steel coils for recovering waste heat from producer gas generator exhaust streams. Integral cooling part under HTS 8405.90.00.00.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8419.50.50.00Higher: 50% vs 37.5%

If independent heat exchangers for industrial use

Standalone exchangers in Chapter 84, not machinery parts.

7304.41.30Higher: 57.5% vs 37.5%

If cold-drawn stainless steel tubes sold bulk

Tube sets without assembly classify by material in Chapter 73.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Heat transfer efficiency specs tied to generator; material traceability for stainless; pitfall: general heat exchanger classification