Cummins QSB6.7 Marine Diesel Engine
The Cummins QSB6.7 is a 6.7-liter inline-6 compression-ignition marine propulsion engine rated at 200 kW, designed for commercial workboats and fishing vessels. It falls under HTS 8408.10.0020 due to its power output between 149.2 kW and 223.8 kW and specific use in marine propulsion applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If adapted for industrial or vehicle use instead of marine propulsion
Engines not specifically for marine use shift to other compression-ignition engine subheadings outside marine propulsion.
If imported as complete marine propulsion machinery with integrated transmission
Machines with self-contained engines and transmissions for specific functions classify as machinery rather than separate engines.
If power rating below 149.2 kW
Power output determines specific statistical suffix within marine diesel engine hierarchy.
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
• Verify engine power rating with manufacturer's spec sheet to confirm it falls within 149.2-223.8 kW range; misclassification to adjacent power bands is common
• Include marine propulsion certification and EPA Tier 3 emissions documentation for U.S. customs clearance
• Ensure gearbox or propeller shaft interfaces are declared separately if imported as an assembly to avoid set classification issues
Related Products under HTS 8408.10.00.20
Volvo Penta D11 Marine Propulsion Engine
Volvo Penta D11 is a 10.8-liter diesel engine delivering 180 kW for marine propulsion in pleasure craft and light commercial vessels. Classified under HTS 8408.10.0020 for its power range of 149.2-223.8 kW and marine-specific design.
MAN D2868 Marine Diesel Engine
MAN D2868 is an 18-liter V8 compression-ignition engine rated at 215 kW for heavy-duty marine propulsion in tugboats and supply vessels. HTS 8408.10.0020 applies due to its 149.2-223.8 kW rating and marine propulsion designation.
Caterpillar C9 ACERT Marine Engine
Caterpillar C9 ACERT 8.8-liter diesel engine provides 205 kW for marine propulsion in fishing boats and patrol vessels. Falls under HTS 8408.10.0020 for diesel marine engines in the 149.2-223.8 kW power bracket.
Yanmar 6LYA-STP Marine Diesel Engine
Yanmar 6LYA-STP is a 370 cid inline-6 diesel rated at 160 kW for recreational and commercial marine propulsion. Classified HTS 8408.10.0020 due to power rating and marine propulsion design.
John Deere 6135SFM Marine Propulsion Engine
John Deere 6135SFM 13-liter inline-6 diesel engine delivers 190 kW for marine propulsion in workboats and ferries. HTS 8408.10.0020 covers this power range for marine diesel propulsion engines.