Where is the water in fuel sensor on Cummins diesel?

The water in fuel sensor on Cummins diesel engines is typically located in the fuel filter housing. It is designed to detect the presence of water in the fuel system, which can cause damage to the engine if left unchecked. The sensor consists of a float that rises when it comes into contact with water, which triggers a warning light on the dashboard. The location of the sensor may vary depending on the specific engine model, so it is best to refer to the engine manual for exact details.