The speed sensor converts the water pressure from the lower unit pitot tube to a digital signal inside the engines ECU.
The speed sensor converts the water pressure from the lower unit pitot tube to a digital signal inside the engines ECU. The ECU then displays the speed on the speedometer. The kit contains all of the components necessary to connect the sensor to the pitot hose coming from the lower unit and one kit fits all. V8 outboards do not have a speedo tube required for connection to this sensor. For use with command link gauges ie. 6Y8 & 6Y9. (replacement sensor part number 90891-40757)
