Honda GX390 Small Engine

The Honda GX390 is a 389cc spark-ignition reciprocating piston engine rated at 9.3 kW (approximately 13 HP), designed for propulsion in small utility vehicles like go-karts and mini bikes under Chapter 87. It falls under HTS 8407.33.9040 due to its cylinder capacity between 250cc and 1000cc and power output not exceeding 18.65 kW. This classification applies specifically to engines intended for vehicle propulsion rather than stationary power generation.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+50.0%50%
🇲🇽MexicoFree+25.0%25%
🇨🇦CanadaFree+25.0%25%
🇩🇪GermanyFree+15.0%15%
🇯🇵JapanFree+15.0%15%

Alternative Classifications

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

8407.90.90.40Lower: 35% vs 50%

If not specifically for vehicle propulsion

Engines without Chapter 87 vehicle propulsion intent classify as 'other' reciprocating engines outside vehicle-specific headings.

8487.90.00Lower: 38.9% vs 50%

If imported as a parts kit or incomplete assembly

Unfinished engine assemblies or parts kits fall under machinery parts rather than complete engines.

8407.34Lower: 25% vs 50%

If cylinder capacity exceeds 1,000cc

Larger displacement engines shift to the next cylinder capacity subheading within the same series.

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 specs and include propulsion end-use certification for vehicles of Chapter 87; common pitfall is misclassifying as stationary garden equipment

Ensure cylinder capacity documentation matches 250-1000cc range

Obtain EPA/CARB emissions labels for US compliance

Related Products under HTS 8407.33.90.40

Kohler CH395 Command Engine

Kohler CH395 is a 399cc single-cylinder spark-ignition engine delivering 11.2 kW, optimized for low-speed vehicles such as golf carts and ATVs classified in Chapter 87. Classified under 8407.33.9040 for its 250-1000cc displacement and power under 18.65 kW, distinguishing it from higher-power automotive engines. It's built for reliable propulsion in recreational and utility vehicles.

Briggs & Stratton 356cc Vanguard Engine

The Briggs & Stratton 356cc Vanguard series engine outputs up to 15 kW, tailored for propulsion in small off-road vehicles like utility task vehicles (UTVs) of Chapter 87. It matches HTS 8407.33.9040 with its mid-range cylinder capacity and low power rating suitable for non-highway use. Horizontal shaft design enhances compatibility with compact vehicle frames.

Yamaha MZ350 Engine

Yamaha MZ350 is a 347cc air-cooled spark-ignition engine rated at 8.5 kW, primarily for propulsion in mini bikes and youth ATVs of Chapter 87. It qualifies for 8407.33.9040 due to cylinder capacity of 250-1000cc and power below 18.65 kW limits. Lightweight design suits recreational low-displacement vehicles.

Lifan 389cc Horizontal Shaft Engine

Lifan 389cc engine provides 15 kW for propulsion in go-karts and small electric-hybrid assist vehicles of Chapter 87. Classified in 8407.33.9040 for its 250-1000cc range and sub-18.65 kW output, ideal for racing and recreational applications. OHV design ensures durability in vehicle chassis mounts.

Clone GX200 Upgraded 6.5HP Engine

Aftermarket Clone GX200 (196cc base upgraded to 250cc equivalent at 4.8 kW) for racing karts and pit bikes of Chapter 87. Fits 8407.33.9040 as low-power reciprocating engine for vehicles with precise displacement control. Popular in motorsports for cost-effective propulsion.