AK Vortec 4200 Custom Harness for Haltech Nexus R3

This custom wiring harness is engineered specifically for the Vortec 4200 engine and designed to work flawlessly with the Haltech Nexus R3 ECU. Precision-crafted from high-quality materials, the harness ensures clean, organized wiring with OEM-level reliability.

Built to simplify installation, it includes all necessary connectors, sensors, and plug points tailored to the Vortec 4200 and Haltech Nexus R3 setup, eliminating guesswork and reducing wiring errors. The harness supports full engine management capabilities, ensuring accurate sensor feedback and optimal ECU communication for your custom or upgraded engine build.

Technical Highlights:
- Complete plug-and-play wiring solution for Vortec 4200 engines
- Full compatibility with Haltech Nexus R3 ECU inputs and outputs
- High-grade wiring and automotive-grade connectors for durability and reliability
- Includes sensor plugs, ignition, injectors, and power wiring tailored to Vortec 4200
- Designed to reduce installation time and wiring complexity

***Each product is made to order in-house in the USA with an average 2-3 week lead time. Images are for reference only and may not show the exact item you’ll receive. Due to the custom nature of our products, all sales are final.***