All of this Adaptor suitable for Local/Japanese Car
Usage for (red)Oil cooler adaptor it got 1 sensor hole for oil temp sensorfor display in autometer,and also 2 hose for going out to the OIL COOLER,Also go back to the oil filter,just same like the yellow unit below
Usage for(Silver)Oil sensor adaptor it just like what that picture show,but that is no hose for you to plug in to the oil cooler,the major Usage for this unit is to allow you to plug the oil temp and oil pressure sensor in to the 2 sensor hole and display in your auto meter