Title: 10 Row AN10 Thermostat Adaptor Racing Oil Cooler Kit. ▶ Water temp Sensor Adaptor. About the Oil Cooler. Key feature on a Oil Cooler Kit is our adapter included a thermostat. To maintain constant oil temp and quick engine warm up, a free flowing thermostat is incorporated inline on the oil block adapter for the standard type and on an external unit for the remote oil filter type.