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HSChapter 85
U.S. exports of ignition magnetos, magneto-dynamos & magnetic flywheels for internal combustion engines (HS 851120) totaled $2.2M in July 2026.
Importers of Ignition Magnetos, Magneto-Dynamos & Magnetic Flywheels for Internal Combustion Engines paid $127K in duties in July 2026 — an effective duty rate of 20% on $625K 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 $1.4M in July 2026 ran 11% above the year-to-date monthly average of $1.3M.
Last updated: July 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.
213 shipments/mo
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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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8511200000 | Ignition Magnetos; Magneto-Dynamos; Magntc Flywls | $1.4M | 8.96% | 44.23% | $127K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8511200000 | Ignition Magnetos; Magneto-Dynamos; Magntc Flywls | $2.2M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$1.4MYoY · Pro
Exports
$2.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
17.3% enters free of duty; the effective duty rate is 8.96%.