Ningbo Wiring Harness
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Ningbo, China · LV & EV harness assemblies

Wiring harness assemblies, connectors and terminated leads built to European Tier-1 sourcing standards

IATF 16949 certified production with in-house connector moulding, supplying European vehicle programmes and aftermarket distributors since 2000.

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25 years
In continuous automotive supply operation
800
Production and engineering staff
12
Automated crimping lines
IATF 16949
Certified quality management system
Wiring harness assemblies, connectors and terminated leads built to European Tier-1 sourcing standards

Product families

LV and EV Wiring Harness Assemblies, Connector Series and Terminated Leads

Which harness family, connector series and lead length match your programme BOM? Ningbo Wiring Harness supplies LV wiring harness assembly and EV harness supplier capacity to European Tier-1 and aftermarket distributors, with 12 automated crimping lines and in-house connector moulding.

Every family below is quoted

LV Wiring Harness Assembly — Passenger Car Body and Door

LV Wiring Harness Assembly — Passenger Car Body and Door

Body and door harness sets for European passenger car platforms, built to programme BOM.

Specifications

Conductor cross-section
0.35–0.75 mm² (AWG 20–18)
Circuit count
40–180 circuits per set
Connector housing series
Series 2, 3 and 4, 1.5/2.5 mm pitch, IP67
Terminal type
150 mm female, 0.35–0.5 mm² open barrel
Assembly tolerance
± 2 mm routing, ± 5 mm lead length
Test and documentation
100% continuity and hi-pot check, IATF 16949 documented
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EV High-Voltage Wiring Harness Assembly

EV High-Voltage Wiring Harness Assembly

HV harness sets for battery, inverter and charge-port interconnect on EV platforms.

Specifications

Nominal voltage rating
Up to 1,000 V DC
Conductor cross-section
16–95 mm² (2–4 AWG), shielded
Connector series
HV circular, 2–4 pin, IP67 and IP6K9K variants
Interlock and monitoring
HVIL integrated, temperature sensor at terminal
Corrosion protection
Galvanic-grade plating, sealed flow crimp terminals
Assembly tolerance
± 3 mm routing on 600 mm service loops
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Engine Compartment Wiring Harness

Engine Compartment Wiring Harness

Powertrain harness for combustion and hybrid applications in engine bays.

Specifications

Conductor cross-section
0.5–6 mm² (AWG 16–8)
Temperature class
–40 °C to +125 °C, Class 3 insulation
Circuit count
60–140 circuits per set
Splice and joint
Ultrasonic or solder crimp, sealed heat-shrink
Shielding
Braided shield to chassis ground on sensor circuits
Ingress protection
IP67 connector interfaces
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Automotive Connector Housing Series

Automotive Connector Housing Series

In-moulded connector housings and seals produced in-house for harness builders.

Specifications

Moulding process
In-house injection moulding, 2-cavity tool sets
Housing sizes
2, 3, 4 and 6 way, 1.5–3.5 mm pitch
Colour coding
RAL-coded housings for circuit identification
Sealing
Silicone or PVC seal insert, IP67/IP54 variants
Mating durability
Rated to 50 mating cycles for serviceable connectors
Tooling lead time
Sample cavity 4–6 weeks, production tool 8–10 weeks
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Terminated Leads and Pre-Wired Cables

Terminated Leads and Pre-Wired Cables

Cut-to-length terminated leads for aftermarket and service distribution.

Specifications

Wire gauge
0.35–2.0 mm² (AWG 20–14)
Lead lengths
100 mm to 2,000 mm, ± 2 mm cut tolerance
Terminal type
Female spade, ring, bullet and butt splice
Crimp specification
Applied crimp force monitored per terminal type
Labelling
Heat-shrink sleeve or printed label per circuit
Packaging
100 or 500 leads per carton, coil option
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Aftermarket Wiring Harness and Repair Kits

Aftermarket Wiring Harness and Repair Kits

Service-grade harness kits for European replacement and accessory distribution.

Specifications

Kit content
Harness, connectors, seals, clips and fasteners
Fitment basis
Vehicle model and trim specific part numbering
Wire gauge
0.5–1.5 mm² (AWG 16–16 equivalent)
Connector series
Service-grade series matched to OE interface
Documentation
Fitment guide and exploded diagram per kit
Packing
Individually boxed, 10 kits per master carton
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Configurations are typical catalogue ranges. Programme-specific drawings, PPAP documentation and DV/PV test results are released under NDA.

Capability

Why European buyers select this plant

This Ningbo automotive wiring harness manufacturer is selected on audit evidence — IATF 16949 certification, 12 automated crimping lines and in-house connector moulding — so European Tier-1 purchasing teams can verify capability before awarding LV and EV harness assembly sourcing.

IATF 16949 certified production system

Automotive quality management certification covers crimping, assembly and traceability, which supports European Tier-1 supplier audits.

12 automated crimping lines

Twelve automatic crimp lines run cross-section and pull-force verification, giving repeatable terminal retention on LV and EV harnesses.

In-house connector moulding

Connector housings are moulded on site, shortening sourcing steps and tightening control over fit, latching and seal geometry.

25 years, 800 staff depth

Twenty-five years in operation with roughly 800 employees supports stable volume delivery to Tier-1 and aftermarket distributor programs.

Terminated leads shipped to Europe

LV wiring harness assembly and terminated leads are packed and exported to European Tier-1 plants and aftermarket distribution channels.

Inspection records for each batch

Batch-level inspection records cover conductor gauge, terminal crimp and continuity, so incoming audits can be closed with documentation.

Process

From RFQ to shipment: how a wiring harness programme runs

  1. 1

    Step 01

    RFQ review and harness selection

    You send drawings, connector list and volumes; we return LV or EV harness feasibility, 2D/3D routing layout and connector sourcing options.

  2. 2

    Step 02

    Quotation and lead time confirmation

    You receive unit pricing for assembly and terminated leads, tooling and in-house connector moulding cost, plus confirmed production lead time.

  3. 3

    Step 03

    Drawing freeze and inspection plan

    We confirm harness drawings, crimp and terminal specs, wire gauge and colour coding, then agree a written inspection plan with your quality team.

  4. 4

    Step 04

    Sample build, DV/PV testing and PPAP

    Prototype builds run on 12 automated crimping lines; you get DV/PV reports and a full PPAP package including control plan, PFMEA and capability data.

  5. 5

    Step 05

    Third-party inspection before shipment

    Your nominated inspection company checks pull force, crimp height, continuity and labelling; we act on any non-conformance before container booking.

  6. 6

    Step 06

    Shipment and supporting documents

    You receive the packing list, commercial invoice, packing declaration and certificate of conformity, with air or sea freight booked to your European dock.

Questions

Ordering an LV or EV wiring harness assembly from China: MOQ, lead time and documentation

What is the minimum order quantity for an LV wiring harness assembly?

MOQ starts at 500 pieces per part number for standard LV harness assemblies, and 200 pieces for terminated leads. Custom connector sets and EV harnesses are quoted per drawing, usually from 1,000 pieces. We hold tooling and raw stock for repeat orders of the same part number.

How long does a Tier-1 wiring harness order take from Ningbo to Europe?

Standard part numbers ship in 25 to 35 days, custom EV harness assemblies in 40 to 55 days including in-house connector moulding. Tooling for a new housing adds 15 to 20 days. Sea freight Ningbo to Rotterdam runs 30 to 35 days; we also quote air freight for pilot builds.

Can I approve samples before a series order?

Yes. We send 5 pieces per part number with a dimensional and continuity report, plus golden samples for the first production lot. Sample cost is credited against the first order. Expect 7 to 10 days for samples of catalogue items, 15 days for custom assemblies.

What inspection and shipping documents accompany the shipment?

Every lot carries an 8D-capable dimensional report, continuity and insulation resistance checks, a wire gauge and cross-section listing, and PPAP documents on request. Shipment includes the commercial invoice, packing list, bill of lading and HS codes for connectors and wire sets.

Which approvals do automotive connector and wire set parts need for the European market?

The manufacturing site runs IATF 16949, and our quality manual is aligned to VDA 6.3 for process audits. Compliance for the finished assembly, including CE marking where the directive applies, is confirmed per project before tooling; we supply the technical file.

What are the payment terms and warranty on harness assemblies?

Terms are 30 percent deposit and 70 percent against the bill of lading copy for new accounts, with open account terms after three shipments. Warranty covers 12 months or 20,000 vehicle hours, whichever comes first, for defects in workmanship, termination and crimp quality.

Something not covered here?Ask us directly

Send your harness drawings or RFQ for a buildable quotation

We respond with connector selection, tooling needs, lead time and a full quotation within three working days.

Request a quote