If you have a 4jh Yanmar engine and your instrument panel does not have a light to indicate you have water in the filter
you can eliminate the expensive filter, wiring, and sensor. The only purpose of that sensor is to indicate you have water in the filter. I eliminated that setup from my new engine and added the one shown in the photo. It is so much easier to change without the wiring.
Kimberlite Amel Super Maramu #376