Brantz BR-3 (Japanese) M22 x 1.5 Gearbox Sensor

The Brantz Japanese Gearbox Sensor is designed to fit directly between the gearbox and speedometer cable on most Japanese vehicles, providing a reliable and accurate speed signal for your tripmeter.

Compact, lightweight, and easy to install, it’s an ideal solution for rally and road use where a mechanical speedo output is available.

Specifications

• Compatible with all Brantz tripmeters and Retrotrips
• Gearbox thread: M22 x 1.5mm
• Cable length: ~1.5m
• Output: 4 pulses per revolution
• Drive type: Circular lug drive with pinch/pin
• Weight: 104g

How It Works

The sensor sits inline between your gearbox output and speedo cable, converting the mechanical rotation into an electronic signal.

• As the gearbox output rotates, the sensor generates electronic pulses
• These pulses are sent to your Brantz tripmeter
• The tripmeter uses this data to calculate speed and distance accurately

Simple, reliable, and proven in real-world rally conditions.

Installation

1. Locate the gearbox speedo output on your vehicle
2. Remove the existing speedo cable
3. Install the sensor onto the gearbox output (M22 x 1.5mm thread)
4. Reconnect the speedo cable to the back of the sensor
5. Route the sensor cable into the cabin and connect to your Brantz unit
6. Secure wiring away from heat and moving parts

Key Benefits

• Direct fit for most Japanese gearboxes
• No complex setup or fabrication required
• Accurate and consistent signal output
• Compact and lightweight design
• Ideal for rally, race, and road applications

A simple inline solution to convert your gearbox drive into a reliable digital signal—perfect for keeping your Brantz system accurate and ready for stage use.