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Custom Wiring Harnesses from China

1 resources tagged with "Wiring"

Automotive and EV wiring harnesses from China should come from IATF 16949 certified manufacturers, not generic cable shops. EV high-voltage harnesses use XLPE insulation, while traditional automotive runs use GXL and similar cross-linked wire. The certification and the wire spec are the gate: a harness for vehicle use without IATF 16949 traceability is a liability you do not want.

When sourcing a custom wiring harness, confirm IATF 16949 certification for automotive work, specify the wire type (XLPE for HV/EV, GXL for general automotive), and require crimp pull-force testing — bad crimps are the dominant harness failure mode and they are invisible in a photo.

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FAQ

What certification matters for automotive harnesses?

IATF 16949 is the automotive quality management standard. A supplier without it lacks the process traceability that OEMs and tier suppliers require, regardless of how good their samples look.

How do I check harness quality before mass production?

Require crimp cross-section and pull-force test reports, continuity testing on every harness, and a first-article inspection against your wiring diagram. Crimp quality is the failure point that visual checks miss.

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