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HSChapter 85
U.S. imports of ignition magnetos, magneto-dynamos & magnetic flywheels for internal combustion engines (HS 851120) totaled $1.0M in April 2026, traded with 33 countries.
Importers of Ignition Magnetos, Magneto-Dynamos & Magnetic Flywheels for Internal Combustion Engines paid $95K in duties in April 2026 — an effective duty rate of 23% on $418K in dutiable value, based on actual customs collections rather than the published tariff schedule. Ignition Magnetos, Magneto-Dynamos & Magnetic Flywheels for Internal Combustion Engines imports of $1.0M in April 2026 ran 21% below the year-to-date monthly average of $1.3M.
Last updated: April 2026 dataMagnetos and magnetic flywheels serve as self-contained ignition power sources in applications where a battery-based system is impractical — notably small aircraft piston engines, racing engines, and certain outdoor power equipment. All three device types (ignition magnetos, magneto-dynamos, and magnetic flywheels) consolidate into a single 10-digit line (8511200000), so importers do not need to distinguish among them for tariff purposes. The aviation segment warrants particular attention to FAA Parts Manufacturer Approval (PMA) or Technical Standard Order (TSO) documentation, which customs brokers should coordinate with compliance teams before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Magnetos intended for use in certificated aircraft must comply with FAA airworthiness requirements, including PMA or TSO authorization. While CBP handles the customs entry, the FAA governs airworthiness approval, and importers should ensure the product's certification status is confirmed before the goods enter the US aviation supply chain.
For HTS purposes, there is no classification difference — ignition magnetos, magneto-dynamos, and magnetic flywheels all fall under 8511200000. The distinction matters commercially (a magnetic flywheel integrates the rotor and ignition trigger into a single spinning mass, while a traditional magneto is a separate assembly), but both are treated identically at the tariff line level.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8511200000 | IGNITION MAGNETOS; MAGNETO-DYNAMOS; MAGNTC FLYWLS | $1.0M | 22.82% | $95K |
IGNITION MAGNETOS; MAGNETO-DYNAMOS; MAGNTC FLYWLS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8511200000 | IGNITION MAGNETOS; MAGNETO-DYNAMOS; MAGNTC FLYWLS | $1.7M |
IGNITION MAGNETOS; MAGNETO-DYNAMOS; MAGNTC FLYWLS
57.8K no
MACH FOR RECP/CONVR/TRANS/REGN OF VOICE/IMAGE/DATA
HS 851762
SOLID-STATE NON-VOL SEMICONDUCTOR STORAGE DEVICES
HS 852351
SMARTPHONES
HS 851713
PROCESSORS AND CONTROLLERS, ELECTRONIC INTEG CIRCT
HS 854231
CONTROLS ETC W ELECT APPR F ELECT CONT NOV 1000 V
HS 853710
STATIC CONVERTERS; ADP POWER SUPPLIES
HS 850440
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | $377K | $29K | -$349K |
| LOS ANGELES INTERNATIONAL AIRPORT, CA | $63K | $209K | +$146K |
| NEW ORLEANS, LA | $11K | $232K | +$222K |