Tacho Output Adaptor

Overview

The Haltech Tacho Output Adaptor bridges the gap between your modern aftermarket ECU and factory dashboard tachometer, ensuring your rev counter works properly after an ECU swap. Essential for maintaining OEM functionality in street builds, track cars, and race applications where accurate RPM display is critical for driver feedback and vehicle compliance.

Technical Specifications

• Part Number: HT-038006
• Signal Type: Square wave to compatible tachometer signal
• Operating Voltage: 12V automotive systems
• Connection: Plug-and-play harness integration

Why You Need This

Factory tachometers expect a specific signal type that differs from Haltech ECU outputs, leaving you with a dead rev counter after installation. This creates MOT issues for road cars and removes crucial RPM feedback for performance driving. The Tacho Output Adaptor converts the ECU's square wave signal into the format your original tachometer requires, maintaining full dashboard functionality.

We see this regularly on LS swap projects into Japanese chassis, RB-powered Skylines with Elite ECUs, and SR20 builds where customers want to retain the factory cluster. Without proper signal conversion, you're left guessing RPM or installing aftermarket gauges that compromise the interior aesthetic. The adaptor solves this cleanly, supporting rev limits, launch control feedback, and maintaining the professional finish that separates quality builds from bodged conversions.

ECU & System Compatibility

Compatible with the full Haltech Elite and Nexus range including Elite 550, 750, 1000, 1500, 2000, and 2500 models, plus Nexus R3 and R5 systems. Works with most factory tachometers that require converted signal input — contact our team to confirm compatibility with your specific vehicle and ECU combination.

What's in the Box

• Haltech Tacho Output Adaptor module (HT-038006)
• Connection harness with vehicle-specific terminals
• Installation instructions and wiring diagram

Complete Your Build

Most customers completing ECU installations also require our Haltech wiring harnesses and relay modules to maintain full vehicle integration. Our technical team can specify the complete package for your build, ensuring proper signal conversion across all systems. With Billy's Speed Shop holding UK stock and offering pre-sales technical support, we'll confirm compatibility and supply everything needed for a professional installation that works first time.