Custom Automotive & EV Wire Harness Manufacturer

Engineering high-reliability electrical distribution systems (EDS) for electric vehicles, hybrids, and specialty automotive platforms. We deliver IATF 16949 certified quality with Low MOQs and PPAP Level 3 support.

Technical Specification	Capabilities & Testing Limits	Standard Compliance
Quality Management	Certified manufacturing processes with comprehensive component-level trace-back.	IATF 16949 Certified
Acceptance Standard	High-reliability terminal crimping, precision soldering, and automated lacing.	IPC-A-620 Class 3
Automotive Validation	Strict splice validation and terminal crimp height/width verification.	USCAR-21 / USCAR-2
Documentation Support	Full New Product Introduction (NPI) support, FAI, and automotive-grade part approval packages.	PPAP Level 3
High Voltage (HV) Capability	Heavy-duty orange shielded traction cabling designed for voltages up to 1000V.	UL, RoHS, REACH Compliant

COMPREHENSIVE VEHICLE SOLUTIONS

Precision Cabling for Every System

We engineer and manufacture specific assemblies for every part of the vehicle:

- Front & Engine: Connecting instrumentation, light assemblies, fuel injectors, and spark plugs.
- Body & Roof: Complex routing for doors, roof lights, audio systems, and power windows.
- Rear & Chassis: Tail lights, license plate sensors, and under-body components.
- HVAC System: Heavy-gauge wiring for blower motors and AC compressors.

Our ruggedized harnesses are trusted across diverse industries:

- Passenger & Commercial: Cars, Semi-trucks, Long trucks, Buses.
- Off-Highway: Farm machinery, Garden tools, Construction equipment.
- Recreational: Motorbikes, ATVs, Go-karts, Golf carts.
- Specialty: Emergency vehicles, Military vehicles, Marine crafts & Boats.

Top-Tier Partners: We maintain a robust inventory of authentic components from TE, Molex, Yazaki, and Sumitomo to ensure OEM-level reliability.
Quality Guarantee: Every harness undergoes rigorous testing for continuity, pull-force, and waterproofing (IP67/IP68).
Easy Installation: Designed with precise dimensions and clear labeling to streamline your assembly line process.

Automotive Sourcing FAQ

Frequently Asked Questions

Unlike traditional large-scale factories that require strict 3,000+ pieces minimums, WireAssyTech specializes in High-Mix, Low-Volume (HMLV) manufacturing. We gladly support prototyping and NPI (New Product Introduction) runs with MOQs as low as 10 to 50 pieces, and easily scale up to mid-batch production (500 - 5,000 pieces) as your project grows.

Yes. As an IATF 16949 certified manufacturer, we support the full automotive part approval process. We can provide PPAP Level 3 packages, including FAI (First Article Inspection), Control Plans, PFMEA, and IMDS registration to meet Tier-1 and OEM supplier requirements.

Yes. We source genuine, certified automotive connectors directly from global broadline distributors. Additionally, we offer high-quality equivalent/cross-reference connectors with rapid 2-4 week lead times to help you bypass global supply shortages.

Yes. Our heavy-duty harnesses are built with ruggedized Deutsch (DT, DTM) and Amphenol connectors. We apply advanced low-pressure overmolding (LPM) and specialized braided sleeving to guarantee IP67/IP68 water, mud, dust, and extreme vibration resistance for tractors, construction equipment, and agricultural vehicles.

Request a Free DFM & Technical Review

Have a custom wire harness design in hand? We strictly protect your intellectual property. We gladly sign Non-Disclosure Agreements (NDAs) before reviewing your schematics. Upload your 2D drawings (PDF) or 3D models (STEP/IGS) today.

Upload Your Drawings & Get Quote