The washer allows you to easily and quickly connect the oil pressure and temperature sensor. It has all the necessary mounting elements along with a gasket. The product is of the highest quality. Made in JAPAN Adapter has a hole for the sensor with a standard 1/8 NPT thread. The washer allows you to easily and quickly connect the pressure and oil temperature sensor. It has all the necessary mounting elements with a gasket. The product is of the highest quality. Made in JAPANAdapter has a hole for the sensor with a standard 1/8 NPT thread.