SITCSection 7

Ignition Wiring Sets & Vehicle Wiring Harnesses

Name: Ignition Wiring Sets & Vehicle Wiring Harnesses (SITC 77313) -- U.S. Import Data
Creator: U.S. Census Bureau
License: https://www.census.gov/about/policies/open-gov/open-data.html

SITC 77313Basic heading5-digit

U.S. imports · July 2026: $1.4B; YTD $9.7B

U.S. exports · July 2026: $263.0M

Balance · July 2026: Sign in free to see the trade balance

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Balance · July 2026: Loading the trade balance

U.S. imports of ignition wiring sets & vehicle wiring harnesses (SITC 77313) totaled $1.4B in July 2026, traded with 88 countries.

Importers of Ignition Wiring Sets & Vehicle Wiring Harnesses paid $54.0M in duties in July 2026 — an effective duty rate of 18% on $302.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.

Last updated: July 2026 data

Wiring harnesses and ignition sets engineered for automobiles, aircraft, and marine vessels are purpose-built assemblies that integrate multiple conductors, connectors, and protective sleeving into a single routed unit. The automotive sector dominates trade volume in this heading, with harness manufacturing concentrated in low-cost labor markets that supply global OEM assembly plants. Mexico is a dominant supplier to the US market given its proximity and deep integration into North American automotive supply chains under USMCA, making cross-border logistics and rules-of-origin compliance central concerns for automotive procurement teams.

AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.

112.0K shipments/mo

12-month trend

ImportsExports

Imports

$1.4BYoY · Pro

Exports

$263.0MYoY · Pro

12-mo low · imports

YoY · Pro

$1.5B$0

June 2025December 2025July 2026

Through July 2026. Source: U.S. Census Bureau.

Suppliers

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Basic heading 17 of 642 in section 7

Share of section 7 imports0.80%

Basic heading 77313 · $1.4B of $175.6B

Where it comes from, where it lands, what it pays

Imports · July 2026

Countries

origin

Mexico and Honduras together supply 75% of it.

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Districts

customs district

Census does not publish district detail for this classification system.

States

destination

Census does not publish state detail for this classification system.

Ports

entry

Census does not publish port detail for this classification system.

Frequently Asked Questions

What rules-of-origin requirements apply to automotive wiring harnesses imported from Mexico under USMCA?

Under USMCA, automotive wiring harnesses must meet specific regional value content and tariff classification change requirements to qualify for preferential duty treatment. The rules are detailed and product-specific; importers should work with a licensed customs broker or trade attorney to confirm that their harnesses meet the applicable USMCA automotive rules before claiming preference.

Does this heading cover wiring harnesses for aircraft and marine vessels, or only automotive?

Yes—the heading explicitly covers wiring sets of a kind used in vehicles, aircraft, or ships. Automotive harnesses are the dominant trade flow, but aircraft wiring looms and marine ignition sets are also classified here, provided they are purpose-designed for those applications rather than general electrical wiring.