8405.90.00.00
Parts
Classification path
- Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof
- Parts
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- 45%
- Unit of quantity
- kg
Related lines in heading 8405
About heading 8405
Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof
Heading 8405 covers gas generators that make fuel or process gas from a chemical or thermal reaction, such as producer gas generators, water gas generators, acetylene gas generators and similar water process gas generators, whether or not they include their purifiers. It also covers parts for those machines. The heading splits into one line for complete generators and one line for parts, and both carry a Free general (MFN) rate.
Full guide to heading 8405Products in this heading
- Producer gas generator set used to convert solid fuel into combustible gas
- Water gas generator
- Acetylene gas generator for welding or cutting shops
- Water process gas generator of the type used in industrial gas production
- Purifier unit presented with a gas generator
- Replacement retort, grate or burner assembly for a gas generator
- Spare parts for acetylene generators
Frequently asked questions
What is the HTS code for an acetylene gas generator?
Acetylene gas generators and similar water process gas generators, with or without their purifiers, are classified in 8405.10.00.00 at a general (MFN) rate of Free.
What is the duty on parts of gas generators?
Parts for the machines of heading 8405 are classified in 8405.90.00.00, and the general (MFN) rate is Free.
How do I classify a purifier imported separately from the gas generator?
A purifier presented on its own is treated as a part and classified in 8405.90.00.00 at a general (MFN) rate of Free. If it is presented together with the generator, the complete unit is classified in 8405.10.00.00 at a general (MFN) rate of Free.
Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.