How to Replace a Motorcycle Speed Sensor: Tools and Steps

A failing speed sensor causes the speedometer to drop out, the odometer to stop counting, or the engine light to come on. Replacing it is usually straightforward with basic tools.

Symptoms of a Bad Speed Sensor

• Speedometer reads zero or jumps around.
• Odometer or trip meter stops working.
• Check engine light on with a speed sensor code.

Replacement Steps (Summary)

1. Locate the sensor - usually at the wheel, sprocket or transmission.
2. Unplug the connector and remove the mounting bolt.
3. Pull the old sensor out and install the new one with a new O-ring.
4. Reconnect and test the speedometer.

What to Look For in a Replacement

Match the OE part number and connector type. A direct-fit sensor plugs in without cutting wires. Quality sensors use sealed connectors and accurate output.

Bottom line: match the OE number and connector for a plug-and-play replacement.

Nachee is a professional motorcycle tools and parts supplier in China, offering OE-style vehicle speed sensors for Harley-Davidson and other models with OEM/ODM support. See our Vehicle Speed Sensor category.