Rolls-Royce WR-21 Marine Gas Turbine
The Rolls-Royce WR-21 is an intercooled recuperated gas turbine designed for high fuel efficiency in naval vessels such as destroyers. It operates on a vapour cycle, expanding hot gases to produce shaft power for marine propulsion, which places it under tariff item 8406.10.00 for turbines for marine propulsion.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the turbine is a gas turbine other than for marine propulsion
Gas turbines for other uses fall under heading 8411, not steam or vapour turbines.
If imported as a part or component for a marine turbine
Parts of steam or vapour turbines are classified separately under 8406.90.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the turbine is declared as a marine propulsion unit, not a stationary power generator, to qualify for 8406.10.00
• Provide technical specifications and end-use documentation to the CBSA to support classification
• Verify if any export permits are required from the country of origin before shipping
Related Products under Tariff item 8406.10.00
Aeroderivative Marine Propulsion Turbine Kit
A kit form aeroderivative turbine for custom marine installs in ferries, including marine adaptations. This kit is classified under tariff item 8406.10.00 as it is a turbine for marine propulsion, despite being in kit form.
Curtis Marine Steam Turbine
A multi-stage impulse steam turbine designed specifically for marine propulsion in naval vessels, utilizing high-pressure steam to drive propellers. This turbine falls under tariff item 8406.10.00 as it is a steam turbine for marine propulsion.
Gas Turbine Generator Set for Marine Propulsion
An integrated gas turbine with generator for electric marine drive systems in cruise ships, enabling podded propulsor setups. This turbine falls under tariff item 8406.10.00 as it is a turbine for marine propulsion, despite the electric output.
GE LM2500 Marine Gas Turbine
The GE LM2500 is a lightweight, high-power aeroderivative gas turbine used for marine propulsion in frigates, destroyers, and fast ferries. It falls under tariff item 8406.10.00 as a gas turbine for marine propulsion.
GE Marine Impulse Steam Turbine
An impulse stage marine steam turbine by GE for frigates and destroyers, emphasizing high-speed propulsion with velocity-compounded stages. This turbine is classified under tariff item 8406.10.00 as it is a steam turbine specifically for marine propulsion.
High-Speed Waterjet Gas Turbine
A gas turbine powering waterjet propulsion in planing hulls, common in fast ferries. This turbine falls under tariff item 8406.10.00 as it is a gas turbine for marine propulsion, driving waterjets.