8483.90.10
Chain sprockets and parts thereof
Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof: Toothed wheels, chain sprockets and other transmission elements presented separately; parts
Data provenance: Rates from HTS Revision 19 (Sep 16, 2026); trade measures verified against CBP CSMS and Federal Register notices through Sep 3, 2026.
Duty rates
Column 1 (General / MFN)
2.8%
Column 2 (Non-NTR)
45%
Column 1 (Special / FTA)
Free
Eligible
The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.
Trade measures (Chapter 99)
9903.88.01
LIST_1
The duty provided in the applicable subheading plus 25%
ActiveExcept as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Applies to origin: CN
Effective from July 6, 2018
SECTION_338
9903.03.12
The duty provided in the applicable subheading + 50%
ActiveSection 338 (Canada): goods of Canada in the Proclamation 11046 annex (provincial liquor-board discrimination against US alcoholic beverages), 50% additional ad valorem duty. The annex reaches well past alcohol: wood (4413/4420/4421), paper (4804-4811) and hockey sticks (9506.99.25) are in it.
Applies to origin: CA
Effective from August 22, 2026
Rate-change history
What the rate was before, and when it changed. The government schedule replaces each revision in place; we keep the timeline.
-
SCOPE_EXPANSION Procs. 11046 / 11047 / 11048 (91 FR 46639) — Section 338 Canada
Section 338 (Canada) alcoholic beverages: 611 subheadings under 9903.03.12 at 50%, effective 2026-08-22
See the change → -
NEW_PROGRAM Executive Order Feb 1, 2026 — Reciprocal Tariff (FR 2026-03824)
Section 122 reciprocal surcharge in effect — additional 10% on most imports through July 24, 2026
See the change → -
Base rate HTS 2023
Column 1 general rate set to 2.8%.
Related CBP rulings
The tariff classification of anti-friction sleeves from China
The products at issue are identified as a stationary bearing sleeve, part number 600-P-1664, and a rotary bearing sleeve, part number 600-P-1665. Each sleeve consists of a steel structural body that features tungsten carbide tiles. The stat
The tariff classification and country of origin of a harmonic planetary reducer
a Harmonic Planetary Reducer, model number HPG-20A-21-F0GCK. The planetary reducer is configured as a planetary gearbox that reduces speed in a fixed ratio (21:1). The gearrotational boxtransmit power to jointconsists of an aluminum housing
The tariff classification of a metal shaft and a tappet gear assembly from Germany
There are two items at issue in this request, part number 71290001, a metal shaft, and part number1000321101, a tappet gear assembly, which
The tariff classification of an output carrier assembly from Mexico and a gear from Canada
The first item under consideration is an Output Carrier Assembly, part number H418C-3. The assembly consists of three gears on a shaft. Once installed in a ring gear, it meshes with a sun gear of a stepper motor located on the engine of an
The tariff classification of a worm wheel from Mexico
de RL de CV. The product at issue is a worm wheel, identified by part numbers A271201005 MQ4a PE HUB-HONING and CL4 HUB-HONING A271201006. The helical wheel features a center bore and an outer diameter of teeth that are designed to mesh wit
The tariff classification of a yoke from South Korea
The item under consideration is a pinched bolt yoke imported in two different conditions: finished and pre-machined. The yoke is a U-shaped item that consists of a base and two sides that feature circular earholes. It is primarily construct
The tariff classification of parts of a CV Joint Assembly from South Korea
Descriptive information was provided with your submission. The four items in question are parts designed to be used in a Constant Velocity (CV) Joint Assembly (part number 8100005JS), which was previously classified in New York ruling N3486
The tariff classification of a gearbox from Japan
Descriptive information was provided with your submission. The product at issue is referred to as a Flap Drive Angle Gearbox, part number 734-06510. The gearbox is part of a flap drive system used in a commercial aircraft and consists of an
The tariff classification of gear units from Japan
Descriptive information was provided with the submission The items under consideration are gear units, part numbers 13632-36030-US and 13634-36050-US. The gear units feature an outer profile of teeth constructed of plastic material and aram
The tariff classification and country of origin of a timing chain kit
The tariff classification and country of origin of a timing chain kit
The tariff classification of castings from Canada
Descriptive information was provided with your submission. The items at issue are impeller castings, part number 24E503AC02J1014A001, and shaft castings, part number JS1100-135-3079542-1. The impeller castings are circular in shape and feat
The tariff classification of pulleys from China
which is pending before the United States Court of International Trade, the United States Court of Appeals for the Federal Circuit or any court of appeal. As such, CBP will not issue a ruling regarding the eligibility of the pulleys under s
Other codes in heading 8483
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 8483.90.10 from each major US trading partner.
Follow 8483.90.10
Get an email when a new CBP ruling cites this code, a ruling on it is revoked, or its tariff measures change.
One email per day at most. Confirm your address once, unsubscribe anytime.
Need to defend this classification?
Get the full 10-digit classification with GRI reasoning for your product, backed by cited CBP rulings and an audit trail for reasonable care.