Cummins QSB6.7 Marine Diesel Engine

The Cummins QSB6.7 is a 6.7-liter inline-6 compression-ignition marine propulsion engine delivering 130-150 kW for mid-size workboats and yachts. It falls under HTS 8408.10.0015 as a diesel marine propulsion engine with power output between 111.9 kW and 149.2 kW, designed specifically for propelling vessels.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+35.0%37.5%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪Germany2.5%+10.0%12.5%
🇯🇵Japan2.5%+10.0%12.5%

Alternative Classifications

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

8408.90.10Lower: 35% vs 37.5%

If used for marine auxiliary power generation

Auxiliary marine engines (non-propulsion) classify under other engines of diesel heading, not marine propulsion subheading.

8408.20Lower: 12.5% vs 37.5%

If power exceeds 149.2 kW

Higher power marine propulsion engines fall into the next statistical break in the same marine propulsion heading.

8479.89Lower: 12.5% vs 37.5%

If imported as complete marine propulsion machinery set with gearbox

Machinery with integral transmission components may classify as marine propulsion systems rather than bare engines.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Verify engine power rating with manufacturer's spec sheet; customs requires certification that output is measured at propeller shaft and within 111.9-149.2 kW range

Include marine propulsion certification (e.g

IMO compliance docs) and ensure engine is not configured for auxiliary/generator use to avoid reclassification