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HTS heading 8412 · Chapter 84

HTS 8412: Other engines and motors, and parts thereof

HTS heading 8412 covers other engines and motors, and parts thereof. It has 10 tariff lines with a duty rate; the general (MFN) rates are Free (10 lines).

Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.

Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.

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Tariff lines and duty rates

HTS codeDescriptionGeneralSpecialColumn 2Estimate
8412.10.00Reaction engines other than turbojetsFree35%
8412.10.00.10Missile and rocket engines[No.]Estimate →
8412.10.00.90Other[No.]Estimate →
Hydraulic power engines and motors:
8412.21.00Linear acting (cylinders)Free27.5%
8412.21.00.15Tie-rod type[No.]Estimate →
8412.21.00.30Weld fused type[No.]Estimate →
Other:
8412.21.00.45Telescoping[No.]Estimate →
8412.21.00.60Rodless[No.]Estimate →
8412.21.00.75Other[No.]Estimate →
8412.29Other:
8412.29.40.00Hydrojet engines for marine propulsion[No.]Free30%Estimate →
8412.29.80OtherFree27.5%
Unlimited rotary acting:
8412.29.80.15Gear type[No.]Estimate →
8412.29.80.30Radial piston type[No.]Estimate →
8412.29.80.45Axial piston type[No.]Estimate →
8412.29.80.60Other[No.]Estimate →
8412.29.80.75Other[No.]Estimate →
Pneumatic power engines and motors:
8412.31.00Linear acting (cylinders)Free27.5%
8412.31.00.40Tie-rod type[No.]Estimate →
8412.31.00.80Other[No.]Estimate →
8412.39.00OtherFree27.5%
8412.39.00.40Unlimited rotary acting[No.]Estimate →
8412.39.00.80Other[No.]Estimate →
8412.80Other engines and motors:
8412.80.10.00Spring-operated and weight-operated motors[No.]Free35%Estimate →
8412.80.90.00Other[No.]Free27.5%Estimate →
8412.90Parts:
8412.90.10.00Of hydrojet engines for marine propulsion[kg]Free30%Estimate →
8412.90.90OtherFree27.5%
Of hydraulic power engines and motors:
8412.90.90.05Of linear acting engines and motors[kg]Estimate →
8412.90.90.15Other[kg]Estimate →
Of pneumatic power engines and motors:
8412.90.90.25Of linear acting engines and motors[kg]Estimate →
8412.90.90.35Other[kg]Estimate →
8412.90.90.50Of reaction engines other than turbojets[kg]Estimate →
Other:
8412.90.90.70Wind turbine blades, imported in accordance with statistical note 2 of this chapter[kg]Estimate →
8412.90.90.75Wind turbine hubs[kg]Estimate →
8412.90.90.85Other[kg]Estimate →

34 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.

Example: base duty and fees on $10000

For HTS 8412.10.00 at the general rate of Free, shipped by ocean, before any Chapter 99 tariffs:

Base duty (Free)$0.00
Merchandise Processing Fee (0.3464%, min $34.58)$34.64
Harbor Maintenance Fee (0.125%)$12.50
Duty and fees$47.14

Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.

Frequently asked questions

What is the duty rate for HTS 8412?

Heading 8412 has 10 rate lines. The general (MFN) duty rates are Free (10 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.

Do Section 301, 232 or 201 tariffs apply to HTS 8412?

It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.

What fees are added to an import under HTS 8412?

Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.