Adjustable Oil Cooler Fan Switch AN10 Male-Male (40 - 140 °C). Connection Size AN10 Male-Male. 1x AN10 Male-Male Adapter DC7-A52-A87. The switch is of a single pole design and earths through the switch body, the inline hose adapters have an M5 blind hole drilled/tapped on one side which is used to provide a suitable earth/ground.