Rotax 912 UL-S3 Aviation Engine

The Rotax 912 UL-S3 is a four-stroke, four-cylinder, liquid-cooled spark-ignition engine with dual ignition, rated at 100 horsepower (75 kW), popular in ultralight and light sport civil aircraft. It qualifies for HTS 8407.10.00.20 as a new reciprocating engine under 373 kW for civil aircraft applications.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
šŸ‡ØšŸ‡³ChinaFree+35.0%35%
šŸ‡²šŸ‡½MexicoFree+10.0%10%
šŸ‡ØšŸ‡¦CanadaFree+10.0%10%
šŸ‡©šŸ‡ŖGermanyFree+10.0%10%
šŸ‡ÆšŸ‡µJapanFree+10.0%10%

Alternative Classifications

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

8407.21.00Same rate: 35%

If outboard marine propulsion rather than aircraft

Similar small spark-ignition engines for boats use marine-specific headings outside aircraft category.

8407.10.00.60Same rate: 35%

If for incorporation in civil helicopters specifically

Helicopter engines have distinct statistical provisions within the aircraft engine hierarchy.

8411.99Lower: 12.4% vs 35%

If components like pistons or cylinders imported separately

Individual parts of aircraft engines classify as parts rather than complete 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

• Provide Rotax factory certification and power curve data to confirm <373 kW; ensure no military markings

• Avoid pitfall of classifying as 'industrial' engine if aviation docs are missing