Cummins QSB6.7 Marine Diesel Engine
The Cummins QSB6.7 is a 6.7-liter compression-ignition inline diesel engine designed specifically for marine propulsion in workboats and pleasure craft. It features turbocharging and aftercooling for high power output up to 480 hp, with direct fuel injection for efficiency. Classified under HTS 8408.10.00 as a marine propulsion engine due to its primary function to propel vessels via inboard installation.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used for auxiliary marine power generation
Auxiliary engines for onboard electricity or hydraulics classify as other diesel engines, not direct propulsion.
If designed for spark-ignition gasoline operation
Gasoline marine engines fall under spark-ignition provisions in heading 8409, differentiated by ignition type.
If imported as a complete outboard motor assembly
Outboard motors with integrated propeller and housing classify as marine propulsion machines of heading 8479.
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Import Tips & Compliance
• Obtain EPA Marine CI Label and CARB certification to comply with U.S. emissions standards for commercial vessels
• Include detailed technical specs and installation diagrams proving propulsion intent, not auxiliary power use
• Verify engine serial numbers match manufacturer certificates to prevent valuation disputes on imports
Related Products under HTS 8408.10.00
Volvo Penta D13-1000 Marine Propulsion Engine
Volvo Penta D13-1000 is a 12.8-liter inline-6 diesel engine delivering 1000 hp for heavy-duty marine propulsion in yachts and commercial ships. It incorporates advanced common-rail fuel injection and SCR aftertreatment for IMO Tier III compliance. Falls under HTS 8408.10.00 as a compression-ignition piston engine optimized for vessel propulsion.
MAN D2868 LE Marine Diesel Engine
The MAN D2868 LE is a V8 compression-ignition engine producing 800-1100 hp for marine propulsion in fishing vessels and ferries. It uses turbo-intercooling and electronic fuel management for reliable performance in harsh marine environments. HTS 8408.10.00 applies as it's a diesel piston engine expressly for ship propulsion.
Caterpillar C32 Acert Marine Propulsion Engine
Caterpillar C32 ACERT is a V12 diesel engine rated at 750-1900 hp for propulsion in high-speed patrol boats and superyachts. Features ACERT technology for emissions control and marine-specific gearing. Classified in HTS 8408.10.00 for its compression-ignition design and marine propulsion purpose.
Yanmar 6LY450 Marine Diesel Engine
Yanmar 6LY450 is a 3.6-liter inline-6 diesel delivering 450 hp for sailboat and cruiser propulsion. It includes direct-injection and turbocharging with a marinized cooling system. HTS 8408.10.00 covers this as a semi-diesel piston engine for marine drive.