Type 1 Hot Oil Sensor fits all beetles through 1979 and buses through 1971. If it is an upright, Type I VW engine this sensor will fit. $35.00 each
Instructions: Replace your original dipstick with the “original” Hot Oil Sensor, then attach the 18″ wire (included with the kit) to the oil pressure switch. You will immediately begin to monitor your engine’s oil temperature. From this point forward the light at the bottom of your odometer serves two functions. While continuing to monitor your oil pressure it now provides the data from your Hot Oil Sensor as well. When your engine oil reaches 225 degrees F the light will begin to flicker, indicating that you are approaching an unsafe operating temperature. Simply reduce your speed and the light will typically stop flickering, indicating your oil temperature has fallen to a safe operating temperature once again. If your oil temperature continues to rise to 235 degrees F the light will remain on, solid.