Overview The Nexus LS 2 Pin Yazaki Alternator Harness delivers plug-and-play alternator integration for LS swap builds running Haltech Nexus ECUs. This 200mm pigtail eliminates the need for splicing or custom wiring when connecting Yazaki-style alternators to your Nexus R5 Universal V8 terminated harness, ensuring reliable charging system operation in your performance build. Technical Specifications Part Number: HT-186125 Length: 200mm Connector Type: 2 Pin Yazaki Application: LS Engine Alternator Integration Compatibility: Nexus R5 Universal V8 Terminated Harness Why You Need This LS swaps present unique wiring challenges, particularly when integrating the alternator charging circuit with aftermarket ECU systems. The LS alternator uses a Yazaki-style connector that doesn't mate directly with standard Haltech harnesses, leaving builders to either hack together connections or spend hours creating custom pigtails. Poor alternator connections are a common failure point in LS builds — loose joints create voltage drops, inconsistent charging, and potential ECU power issues that can leave you stranded. This purpose-built harness bridges the gap between your Nexus R5 Universal V8 terminated harness and the LS alternator's Yazaki connector. The 200mm length provides adequate routing flexibility while maintaining clean engine bay aesthetics. Whether you're building a track-focused E36 LS swap, dropping an LS3 into a classic muscle car, or completing a boosted LS turbo build, this harness ensures your charging system integration is bulletproof from day one. ECU & System Compatibility Designed specifically for use with the Haltech Nexus R5 Universal V8 Terminated Harness (HT-186200). This harness integrates seamlessly with the full Nexus ECU range including the Nexus R3 and R5 platforms when paired with the appropriate terminated harness system. What's in the Box 1x Nexus LS 2 Pin Yazaki Alternator Harness (200mm) Pre-terminated Yazaki connector Nexus harness connection terminals Complete Your Build Most customers completing an LS swap with Nexus ECU management pair this harness with the Nexus R5 Universal V8 Terminated Harness for a complete plug-and-play solution. Consider adding LS-specific sensors, knock sensor harnesses, and coil harnesses to complete your conversion. Our technical team can recommend the complete harness package for your specific LS platform and application — we keep comprehensive Nexus LS swap components in UK stock for immediate despatch.
