Loading...
HSChapter 84
U.S. imports of aircraft spark-ignition reciprocating & rotary internal combustion piston engines (HS 840710) totaled $7.0M in April 2026, traded with 14 countries.
Importers of Aircraft Spark-Ignition Reciprocating & Rotary Internal Combustion Piston Engines paid $33K in duties in April 2026 — an effective duty rate of 7.1% on $468K in dutiable value, based on actual customs collections rather than the published tariff schedule. Aircraft Spark-Ignition Reciprocating & Rotary Internal Combustion Piston Engines imports of $7.0M in April 2026 ran 38% above the year-to-date monthly average of $5.1M.
Last updated: April 2026 dataImported under HTS heading 840710, these aircraft piston engines are split across four 10-digit lines by power output — below 373 kW (8407100020), at or above 373 kW (8407100040), used engines (8407100060), and non-civil aircraft engines (8407100090). Canada leads US supply, with Austria and Switzerland also prominent sources reflecting the strong European general-aviation engine manufacturing base (notably Rotax and Lycoming-type competitors). Importers should confirm FAA airworthiness documentation and bilateral aviation safety agreement coverage, as these requirements are separate from CBP entry formalities.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The schedule provides a dedicated line (8407100060) for used spark-ignition aircraft engines, which may carry a different duty rate than new engines classified under 8407100020 or 8407100040. Importers should verify the condition of the engine at time of entry and document it accordingly to avoid misclassification.
The 373 kW (500 hp) breakpoint separates lighter general-aviation and experimental aircraft engines (8407100020) from higher-powered turboprop-replacement or heavy piston engines (8407100040). Correct power rating documentation from the manufacturer is essential, as misclassification between these lines can affect duty liability and statistical reporting.
Supplier Network
Get discovered by U.S. importers searching for HS 840710 — Aircraft Spark-Ignition Reciprocating & Rotary Internal Combustion Piston Engines. Be the first supplier listed.
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $4.9M | -- | -$4.9M |
| SWITZERLAND | $810K | $40K | -$770K |
| AUSTRIA | $536K | -- | -$536K |
| PHILIPPINES | -- | $350K | +$350K |
| CZECH REPUBLIC | $328K | -- | -$328K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8407100060 | SPK-IGN RECIP OR ROT INT COMB PST A/C ENG, USED | $4.2M | 10.00% | $3K |
| 8407100040 | SPK-IGN RECIP OR ROT INT COMB PST A/C ENG,GT 373KW | $1.7M | 1.51% | $2K |
| 8407100020 | SPK-IGN RECP OR ROT INT COMB PST A/C ENG, LT 373KW | $822K | 10.00% | $18K |
| 8407100090 | SPK-IGN REC OR ROT INT COM PST TYP A/C ENG EXC CIV | $307K | 10.00% | $10K |
SPK-IGN RECIP OR ROT INT COMB PST A/C ENG, USED
SPK-IGN RECIP OR ROT INT COMB PST A/C ENG,GT 373KW
SPK-IGN RECP OR ROT INT COMB PST A/C ENG, LT 373KW
SPK-IGN REC OR ROT INT COM PST TYP A/C ENG EXC CIV
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8407100090 | SPK-IGN REC OR ROT INT COM PST TYP A/C ENG EXC CIV | $974K |
SPK-IGN REC OR ROT INT COM PST TYP A/C ENG EXC CIV
44 no
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SWEETGRASS, MT | $1.8M | -- | -$1.8M |
| NEW ORLEANS, LA | $925K | $50K | -$874K |
| ATLANTA, GA | $710K | -- | -$710K |