Wire Harness Tariffs from China to the US in 2026: HTS 8544.30, Section 301, and Landed Cost

Wire harness tariffs from China commonly fall under HTS 8544.30, the U.S. Harmonized Tariff Schedule (HTSUS) classification for ignition and other wiring sets used in vehicles, aircraft, or ships." (使用 "commonly fall under" 和 "HTSUS classification Many China-origin imports under this classification carry a 5% general duty plus a 25% Section 301 duty, creating a 30% duty stack before freight, customs fees, and brokerage costs. Other harnesses may fall under HTS 8544.42 instead, so classification matters before you place a purchase order. For a tariff-aware manufacturing quote, contact our team and send your drawings, bill of materials (BOM), target volume, and delivery terms.

Tariff disclaimer: This article provides general guidance only and does not constitute legal, customs, or classification advice. Consult a licensed customs broker or trade attorney for specific Harmonized Tariff Schedule of the United States (HTSUS) classification, duty, origin, exclusion, and entry advice.

Key Takeaways

The common tariff number for vehicle, aircraft, or ship wire harnesses is HTS 8544.30.0000.

Many China-origin wire harness imports under HTS 8544.30 carry a 5% general duty plus a 25% Section 301 duty.

Some low-voltage cable assemblies may fall under HTS 8544.42 instead.

The wrong HTS code can change duty rates, delay entry, and increase audit risk.

USTR exclusions are product-specific and must match the exact shipment.

The $800 de minimis route should not be assumed for 2026 prototype imports.

Duty drawback may help importers who later export qualifying goods.

Use a licensed customs broker for classification and entry advice.

What Is the HTS Code for Wire Harnesses?

The main HTS code for many wire harnesses is HTS 8544.30.0000. This code covers ignition wiring sets and other wiring sets used in vehicles, aircraft, or ships.

That direct answer matters because many U.S. buyers search for one “wire harness tariff number.” However, not every cable or harness belongs under 8544.30. A vehicle wiring set, a low-voltage equipment cable, a telecom cable, and a power cord can each require different treatment.

For example, an automotive lighting harness may fit 8544.30. A low-voltage cable assembly fitted with connectors may fall under 8544.42.9090. A telecom patch cable may use 8544.42.2000. The right code depends on product design and end use. Wire harness imports also differ from printed circuit board (PCB) imports – do not apply a PCB code to a wire harness shipment.

HTS 8544.30 vs. HTS 8544.42: Which Applies to Your Harness?

HTS 8544.30 applies when the product is a wiring set used in vehicles, aircraft, or ships. This can include automotive harnesses, off-road vehicle harnesses, marine wiring sets, and certain aircraft wiring sets.

HTS 8544.42 applies to other insulated electric conductors for voltages not exceeding 1,000 volts, fitted with connectors. This can include industrial cable assemblies, appliance cables, equipment wiring, and some internal machine connections. The distinction affects both the base duty and the import record.

Use this screening table before sending a purchase order:

HTS 8544.30 commonly carries a 5% general duty for wiring sets used in vehicles, aircraft, or ships. HTS 8544.42.9090 has appeared in CBP rulings with a 2.6% general duty for certain insulated electric conductors fitted with connectors. Both classifications may still attract a separate Section 301 duty when the goods originate in China.

Current Section 301 Tariff Rate on Wire Harnesses from China

In 2026, many China-origin wire harnesses will remain subject to additional U.S. Section 301 duties. For common HTS 8544.30 entries, the additional Section 301 duty is often 25%.

That 25% does not replace the normal duty – it stacks on top of the base HTS duty. For a typical China-origin automotive wire harness under HTS 8544.30, the combined duty position can look like this:

Always verify the live tariff line before placing or processing an order. Check the USITC HTS database, the USTR Section 301 tariff actions page, and the current CBP trade remedies guidance.

Are Any USTR Exclusions Still Active?

Some Section 301 exclusions have been extended over time, but they are narrow. An exclusion must match the exact HTS code, product description, entry date, and Chapter 99 treatment. Do not rely on a supplier saying “tariff excluded” without independently verifying the exclusion language.

A valid exclusion for one cable product may not cover your custom wire harness. Before importing, confirm all of the following with your broker:

Does the exclusion cover the exact 10-digit HTS code?

Does the product description match your harness?

Does the exclusion apply to the entry date?

Does your customs broker agree with the claim?

Do you have supporting documents ready if CBP requests them?

For the latest status, check the USTR exclusions page and confirm the entry treatment with your broker before shipment.

How to Calculate Your Total Landed Cost

A China wire harness quote should not stop at the FOB price. Your landed cost should include the product cost, base duty, Section 301 duty, freight, insurance, merchandise processing fees, harbor maintenance fees where applicable, brokerage, and delivery charges.

The table below shows a simplified example using HTS 8544.30, a 5% base duty, and a 25% Section 301 duty with an estimated freight contribution. Actual rates depend on shipment method, Incoterms, carrier, timing, and entry details.

This example shows why a lower unit price from China does not always produce the lowest landed cost. A $50,000 harness order can reach an estimated $68,500 landed cost before additional customs fees and domestic delivery charges.

We can help you compare custom wire harness production, PCB assembly (PCBA), and component sourcing as a single combined project. Review our custom wire harness manufacturing and one-stop PCB assembly services if your product includes both harnesses and boards.

What About the $800 De Minimis Threshold?

The $800 de minimis threshold once applied to many small prototype shipments, allowing duty-free entry on low-value commercial imports. In 2026, U.S. importers should not assume that treatment still applies.

Policy changes in 2025 mean low-value shipments can now require more complete customs data, HTS classification, and duty treatment. This matters for prototype wire harness orders, engineering samples, and small pilot runs. If you are importing samples from China, confirm the current entry route with your express carrier, freight forwarder, or broker before shipment.

Is Duty Drawback an Option?

Duty drawback may help if you import China-origin wire harnesses into the United States and later export the same goods, export qualifying substitute goods, or use the imported goods in exported finished products. Section 301 duties can be eligible for drawback when the claim meets U.S. Customs and Border Protection (CBP) requirements.

In many qualifying drawback scenarios, eligible claimants may recover up to 99% of certain duties paid. Confirm eligibility and the claims process with a licensed customs broker or trade attorney.

Reducing Your Wire Harness Tariff Exposure

Tariff exposure is determined by manufacturing facts, not simply by altering paperwork or shipping routes. Country of origin hinges on where substantial transformation occurs, not transit paths. A product routed through Vietnam, Mexico, Taiwan, or another country may still carry a China origin if the work performed outside China does not constitute a substantial transformation. Simple repacking, relabeling, or forwarding does not resolve the issue.

These practical steps can help you manage tariff costs before and after your purchase order:

Classify the harness early: Confirm whether HTS 8544.30, 8544.42, or another code applies.

Map the manufacturing process: Document where cutting, stripping, crimping, soldering, overmolding, testing, and final assembly occur.

Model landed cost before PO approval: Include duties, freight, customs fees, and quality costs in every comparison.

Check exclusions before entry: Match the product against live USTR language and confirm with your broker.

Ask about the drawback: If you export products that include imported harnesses, duty recovery may affect your sourcing math.

Use a licensed broker: A customs broker can review classification, Chapter 99 reporting, and entry documents.

At OurPCB, we support custom wire harnesses, cable assemblies, PCB manufacturing, PCBA, and integrated electronics sourcing. If your project includes both wiring and boards, we can quote the build as a complete assembly package.

Send us your drawings, BOM, annual volume, target Incoterms, and destination country. We'll review your manufacturing requirements and facilitate a practical cost discussion before production begins.

FAQs on Wire Harness Tariffs from China to the US in 2026

What is the tariff number for a wire harness?

The main tariff number for many vehicle, aircraft, or ship wire harnesses is HTS 8544.30.0000. Other cable assemblies may fall under HTS 8544.42 or another code, depending on voltage, connectors, end use, and construction. Always confirm the correct 10-digit HTSUS code with a licensed customs broker before importing.

What is the wire harness import duty from China?

For many China-origin wire harnesses under HTS 8544.30, the duty stack can include a 5% general duty plus a 25% Section 301 duty, creating a common 30% duty estimate before freight, customs fees, brokerage, and other charges. The exact rate depends on the HTS code, entry date, and exclusion status.

How do Section 301 tariffs work?

Section 301 tariffs are additional duties applied to certain products of Chinese origin. They stack on top of the normal HTS duty. Importers typically report both the regular HTS code and the applicable Chapter 99 code on the entry filing.

Who pays the tariff – the importer or the exporter?

The U.S. importer of record pays the tariff to CBP. The commercial contract may shift the economic cost through pricing adjustments or Incoterms, but CBP holds the importer of record responsible for entry compliance.

Is there a single China tariff rate?

No, the rate depends on the HTS code, country of origin, tariff program, Section 301 list, exclusion status, and entry date. Many wire harness imports from China face a 25% Section 301 layer on top of the applicable base duty.

Are Section 301 tariffs eligible for duty drawback?

Yes, Section 301 duties can be eligible for duty drawback when the importer meets CBP rules. This may apply when imported goods, substitute goods, or manufactured products are later exported or destroyed under qualifying conditions. Confirm the claims process with a licensed customs broker.

Does HTS 8544.30 apply to every wire harness?

No, HTS 8544.30 ‌covers wiring sets used in vehicles, aircraft, or ships. General equipment cable assemblies, telecom cables, power cords, and active electronic assemblies may require different HTS classifications.

Should I ask my supplier for the HTS code?

Yes, but do not rely on the supplier’s code alone. A supplier’s HS code can help start the review, but the U.S. importer of record must independently confirm the correct 10-digit HTSUS code, Chapter 99 code, country of origin, and duty treatment.

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