Description
This aftermarket sensor screws into the bottom of the fuel filter assembly, or a dedicated water trap bowl, on diesel engines. It continuously monitors the fuel supply for moisture or impurities. If water accumulates in the filter, the sensor completes an electrical circuit and triggers a dashboard warning light to alert the driver to drain the filter before water can reach and damage the high-pressure fuel injection system.
Part number
WL81-13-ZA6, WL8113ZA6, 4000400, XM34-9J308-AA
Application
Mazda BT-50 (UN model, 2006–2011)
Mazda B-Series / Bravo (B2500, B2900)
Ford Ranger (2006–2011 models sharing the Mazda platform)