At Define Engineering, we build high-quality, fully custom wiring harnesses from basic lighting circuits to complex multi-core systems. Whether you're working on truck builds, fleet maintenance, or OEM fit outs, our harnesses are designed for reliability, serviceability, and long-term performance.
🛠️ Professional Equipment
As experienced wiring harness manufacturers, we use high-end manufacturing and testing tools to ensure every custom wiring harness is consistent, durable, and built for real-world use.
🇦🇺 Local & Responsive
Proudly Victorian and trusted among wiring loom manufacturers in Australia, we offer fast turnaround, clear communication, and quick support when you need it most.
🧩 Built to Fit Your Needs
We don’t do off-the-shelf. Every custom wiring harness is tailored to your exact layout, components, and installation needs — built to spec, built to last.
🤝 Trusted Industry Components
As leading wiring harness and loom manufacturers, we partner with OEM-grade suppliers to build with quality connectors, terminals, and materials for long-term reliability.
1. We assess your requirements
We come to your site or review specs to understand your application.
2. We design and build your harness
Custom-built by our in-house team with high-precision tooling.
3. You receive and install with confidence
Pre-tested, clearly labelled, and service friendly.
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