High-Sulfur Bunker Grade No. 4 Fuel
A No. 4 specification bunker fuel for marine auxiliary engines and port generators, featuring >500 ppm sulfur, 25-30 API, and 90 SUS viscosity at 100°F. Meets HTS 2710.19.11.25 for distillate/residual fuels used in stationary marine applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lighter distillates
If viscosity <45 SUS, classifies as kerosene-type or lighter fuel oils.
If additized preparations
Fuel oils with performance additives >30% may classify as other preparations.
If aromatic-rich
High aromatic content (>50% xylenes/etc.) shifts to aromatic hydrocarbon headings.
Not sure which classification is right?
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Import Tips & Compliance
• Comply with MARPOL Annex VI sulfur limits; provide bunker delivery note with sulfur verification
• Declare as 'non-propulsion fuel' if for auxiliary use to avoid vessel fuel restrictions
• Bulk imports need shore tank gauging certs matching invoice quantities and specs
Related Products under HTS 2710.19.11.25
No. 4 Fuel Oil (High Sulfur)
A medium-weight distillate fuel oil derived from petroleum refining, testing 25 degrees A.P.I. or more with Saybolt Universal viscosity between 45-125 seconds at 37.8°C, containing over 500 ppm sulfur. Classified under HTS 2710.19.11.25 due to its specific gravity, viscosity, and sulfur content meeting the criteria for No. 4-type fuel oils used in industrial heating.
Blended No. 4 Heating Oil (High Sulfur)
A blended distillate fuel oil for commercial heating systems, consisting of >70% petroleum oils with API ≥25°, viscosity 45-125 SUS at 37.8°C, and sulfur >500 ppm. Fits HTS 2710.19.11.25 as a residual/distillate blend designed for medium boilers and industrial furnaces.
Industrial No. 4-Type Fuel Oil (>500 ppm S)
Petroleum distillate fuel for industrial burners and generators, with Saybolt viscosity 65 SUS average, API 28°, exceeding 500 ppm sulfur content. HTS 2710.19.11.25 applies precisely to this No. 4 specification for non-road heavy equipment and factory heating.
No. 4 Diesel Blend Fuel Oil (High Sulfur)
Blended fuel oil combining diesel distillates and residuals to achieve No. 4 specs: API >25°, 45-125 SUS viscosity, sulfur >500 ppm, for off-highway diesel engines. HTS 2710.19.11.25 covers this as distillate fuel oil for heavy machinery.
Commercial Boiler No. 4 Fuel Oil (>500 ppm S)
Distillate fuel oil formulated for multi-burner commercial boilers, with precise 50-100 SUS viscosity, 27 API gravity, and sulfur content over 500 ppm. Precisely matches HTS 2710.19.11.25 for No. 4-type residual fuels in heating applications.