[ SO-CAL EXPERTISE ]
Turn-KEI Services
Based in Southern California, we specialize in high-reliability custom wire and cable harnesses for automotive, industrial equipment, and a wide range of other applications. From early-stage prototypes to low-volume production, we deliver precision, flexibility, and fast turnaround times without unnecessary delays or minimum order requirements.

Our Advantages
No Minimum Order Quantities
We provide the flexibility you need for prototype projects, eliminating the bureaucratic barriers of traditional suppliers.
Rapid Delivery Solutions
Accelerate your development cycle with our streamlined manufacturing processes designed for urgent aerospace and defense needs.
Technical Precision
Our industry professionals deliver high-reliability custom harnesses tailored specifically for the most demanding automotive and aerospace environments.
Expertise & Industries
Founded by engineers with professional experience across the aerospace, defense, and automotive industries, Turn-KEI Services brings technical expertise, precision, and a quality-driven approach to every project. We apply this experience to deliver reliable custom wire harnesses and cable assemblies for customers across a wide range of industries.
Aerospace Experience
We bring experience from the aerospace industry, where precision, reliability, and attention to detail are essential. This background helps shape our approach to wire harness assembly, workmanship, and quality control.
Defense Industry Experience
With professional experience in the defense sector, our founders understand the importance of quality, consistency, and dependable electrical systems. We bring this disciplined engineering mindset to every project.
Automotive Experience
Our team's automotive experience includes electrical systems, wiring, and prototype development. We support custom wire harnesses and cable assemblies for electric vehicles, automotive applications, and engineering prototypes.
ENGINEERED SOLUTIONS
Consulting Services Package
We bridge the gap between concept and production with comprehensive engineering and technical support. From technical drawings and prototype development to final testing and validation, we ensure your custom wire harnesses and cable assemblies meet high standards of quality, reliability, and performance across a wide range of applications.
Harness Drawings
Precise electrical schematics and 2D/3D layouts engineered for manufacturability and high-reliability environments.
Prototyping
Rapid functional prototypes built to specification, allowing for immediate fit-checks and iterative engineering phase speed.
Testing & Validation
Comprehensive continuity, insulation, and environmental testing to guarantee technical reliability before full-scale deployment.
NO MOQS REQUIRED
Our Projects
Explore our recent custom wire harness and cable assembly solutions for automotive, industrial, consumer electronics, home appliances, and a wide range of prototype development applications.
Our foundation is built on decades of collective expertise from aerospace, defense, and automotive manufacturing. We bring technical precision and a pragmatic approach to every prototype project, ensuring your engineering timeline remains on track.
Prototype Speed
Eliminate multi-month lead times. We deliver turnkey solutions for aerospace and defense R&D labs without the bureaucratic delays of traditional suppliers.



