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HSChapter 85
U.S. imports of ignition & wiring sets for vehicles, aircraft & ships (HS 854430) totaled $1.4B in June 2026, traded with 87 countries.
Importers of Ignition & Wiring Sets for Vehicles, Aircraft & Ships paid $51.6M in duties in June 2026 — an effective duty rate of 16% on $324.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Wiring harnesses and ignition wiring sets purpose-built for automotive, aerospace, and marine applications are among the most labor-intensive electrical components in global supply chains, which explains why Mexico and Honduras — both with large, established wire-harness assembly industries — dominate US import supply under this heading. The entire heading is consolidated into a single 10-digit line (8544300000). These assemblies are typically engineered to OEM specifications, making country-of-origin and rules-of-origin compliance under USMCA a routine but detailed exercise for automotive-sector importers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Wiring harness assembly is highly labor-intensive and difficult to automate, making proximity to the US market and lower labor costs decisive factors. Mexico benefits from USMCA integration with US automakers, while Honduras has developed a significant harness industry serving North American OEMs, often under preferential trade arrangements.
For USMCA preference claims, importers need a certification of origin from the producer or exporter confirming that the harness meets the applicable tariff-shift or regional-value-content rule. Given that harnesses incorporate conductors, connectors, and protective materials that may originate in multiple countries, a detailed bill of materials and regional value content calculation are commonly required to substantiate the claim.
Monthly import values over time
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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 |
|---|---|---|---|---|---|
| 8544300000 | INSULATED WIRING SETS FOR VEHICLES SHIPS AIRCRAFT | $1.4B | 3.61% | 22.73% | $51.6M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8544300000 | INSULATED WIRING SETS FOR VEHICLES SHIPS AIRCRAFT | $270.3M |
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 |
|---|---|---|---|
| LAREDO, TX | $379.7M | $50.1M | -$329.6M |
| YSLETA, TX | $404.6M | $15.2M | -$389.4M |
| LOS ANGELES, CA | $123.5M | -- | -$123.5M |
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $998.0M | $110.5M | -$887.5M |
| VIETNAM | $88.0M | $504K | -$87.5M |
| CANADA | $5.5M | $70.8M | +$65.3M |
| PHILIPPINES | $70.3M | $906K | -$69.4M |
| HONDURAS | $70.1M | $72K | -$70.0M |