Haltech HT-182200 Universal Wire-In Harness 2.5 m for Nexus S2/S3

Vehicle Fitment

• Universal wiring harness - compatible with Haltech Nexus S2 and S3 ECUs for any engine/chassis

Features

• Pre-terminated ECU connectors on one end for plug-and-play installation
• Colour-coded and labelled wires on the unterminated end for easy identification
• Standard automotive-grade TXL wire for durability and resistance to heat/vibration
• Complete wiring loom for sensors, injectors, ignition and accessories - ideal for engine swaps or custom builds
• Supports dual CAN bus ports for expansion and accessory integration
• 2.5 m (8 ft) harness length - ample reach for most engine bay layouts and wiring routing
• Includes wiring diagram and quick-start guide for straightforward installation
• Reduces installation time and wiring errors compared to building a custom loom from scratch

Specifications

• Part Number: HT-182200
• Wire type: TXL automotive-grade wiring
• Harness length: 2.5 m (8 ft)
• Compatibility: Haltech Nexus S2 and Nexus S3 ECUs
• Connectors: ECU-side connector(s) terminated, vehicle-side wires unterminated (colour-coded/labelled)
• Suitability: Engine swaps, custom wiring looms, standalone ECU conversions, race builds, modified street cars

Included Components

• 1x 2.5 m (8 ft) universal wire-in harness (HT-182200)
• Pre-terminated ECU connector(s)
• Unterminated, colour-coded/labelled wiring ends for wiring to sensors, injectors, ignition, accessories
• Wiring diagram and quick-start guide

Product Description

The Haltech HT-182200 Universal Wire-In Harness is a complete wiring solution designed for use with Haltech Nexus S2 and S3 ECUs. It's ideal when doing engine swaps, standalone ECU conversions, or building custom wiring looms for modified cars. Because one end is fully terminated with ECU connectors and the other end is a colour-coded harness ready for wiring into your sensors, injectors, ignition system, and accessories, installation becomes significantly easier and less error-prone than building a custom wiring loom from scratch.

At 2.5 m (8 ft) length and built with automotive-grade TXL wiring, the harness offers flexibility in routing across many engine bay layouts - whether you're packaging a small 4-cylinder swap or a complex high-performance inline-6 or V8. The included wiring diagram and quick-start guide simplify wiring tasks and help ensure correct pinouts. This harness is a great foundational piece for engine-swap projects, standalone ECU installations, or race builds where reliability, clean wiring, and flexibility are priorities.

For tuners, custom-builders, and performance enthusiasts, HT-182200 removes the uncertainties of a DIY loom and speeds up installation - letting you focus on tuning, modifications, and performance rather than wiring headaches.