Blanking plug for ST300 speed/temperature sensors. Fits P371 and P398 housings. Seals thru-hull opening during sensor removal to prevent water ingress. Read more.
Replacement ST300 Blanking Plug Assembly. Fits: ST300 Speed and Temperature Sensors, P371, and P398 housings. This assembly is designed to seal the thru-hull opening when the sensor insert is removed, helping to prevent water ingress and maintain hull integrity during maintenance or sensor replacement.
