Koso Temperature Gauge Spark Plug Adapter (For Air-Cooled Engines)

This spark plug temperature adapter is designed for air-cooled (AC) engines using Koso temperature gauges with a spark plug-mounted temperature sensor. The adapter fits onto the spark plug, allowing the sensor to measure the temperature of the the cylinder head.

Available in 10 mm and 14 mm versions to suit different spark plug thread sizes. For most moped/motorcycle engines, (Piaggio, Minarelli Vertical/Horizontal, Derbi, AM6, etc.), the 14mm size should be used. 

If you need help deciding what size to order, or have any other questions about this product, please email strayracing@gmail.com for consultation.