8407.29.00.40
Inboard engines with inboard drive / Exceeding 18.65 kW
Classification path
- Spark-ignition reciprocating or rotary internal combustion piston engines
- Marine propulsion engines
- Other
- Inboard engines with inboard drive
- Exceeding 18.65 kW
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- 35%
- Unit of quantity
- No.
Related lines in heading 8407
- 8407.10.00.20For use in civil aircraft / New / Less than 373 kWFree
- 8407.10.00.40For use in civil aircraft / New / 373 kW or overFree
- 8407.10.00.60Aircraft engines / For use in civil aircraft / Used or rebuiltFree
- 8407.10.00.90Spark-ignition reciprocating or rotary internal combustion piston engines / Aircraft engines / OtherFree
- 8407.21.00.40Marine propulsion engines / Outboard motors / Less than 22.38 kWFree
- 8407.21.00.80Marine propulsion engines / Outboard motors / OtherFree
- 8407.29.00.10Inboard engines with outboard driveFree
- 8407.29.00.20Inboard engines with inboard drive / Less than 746 WFree
- 8407.29.00.30746 W or greater, but not exceeding 18.65 kWFree
- 8407.31.00.40Of a cylinder capacity not exceeding 50 cc / Less than 746 WFree
- 8407.31.00.80Of a cylinder capacity not exceeding 50 cc / OtherFree
- 8407.32.10.00To be installed in tractors suitable for agricultural useFree
About heading 8407
Spark-ignition reciprocating or rotary internal combustion piston engines
Heading 8407 covers spark-ignition reciprocating or rotary internal combustion piston engines, meaning gasoline-type engines with spark plugs rather than diesel engines. The heading splits first by end use: aircraft engines (8407.10), marine propulsion engines (8407.21 and 8407.29), engines for vehicles of chapter 87 (8407.31 through 8407.34, split by cylinder capacity), and all other engines (8407.90). Most lines in the heading carry a general (MFN) rate of Free, with a 2.5% rate on certain vehicle engines of 250 cc and above.
Full guide to heading 8407Products in this heading
- Outboard motors for boats
- Piston engines for light aircraft
- Small gasoline engines for motorcycles and mopeds under 50 cc
- Spark-ignition engines to be installed in passenger cars
- Engines for agricultural tractors
- Engines for agricultural or horticultural machinery such as tillers
- Natural gas or liquid propane (LP) engines
- Used or rebuilt gasoline engines for vehicles
Frequently asked questions
What is the HTS code for a small outboard marine engine under 22.38 kW?
Outboard motors under 22.38 kW are classified under 8407.21.00.40. The general (MFN) rate for that line is Free.
What is the duty on a spark-ignition engine to be installed in a passenger car with 1,500 cc cylinder capacity?
A new engine of that size for heading 8703 vehicles falls under 8407.34.18.00. The general (MFN) rate is 2.5%.
How do I classify a gasoline engine for agricultural or horticultural machinery?
Engines for agricultural or horticultural machinery go in 8407.90.10, split by power and cooling. For example, an air-cooled engine over 37.3 kW is 8407.90.10.60 at a general (MFN) rate of Free, and an engine not exceeding 37.3 kW at 4,476 W or more is 8407.90.10.20, also Free.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.