Review on 🔝 Genuine Toyota 16401-31520 Radiator Cap Sub Assembly: Superior Quality for Optimal Cooling Performance by Mark Jefferson

When your vehicle gets very hot, it can be due to many things: belts, tensioners, hoses, water pumps, radiator plugs, heater core plugs, low water, fans, thermostats, RADIATOR CAP and more. In my case the radiator cap failed to hold the pressure and the coolant boiled into the expansion tank. Replacing the radiator cap should be treated as regular maintenance with every radiator fluid change - it's a good investment. The markings on the lid don't look like the picture or my OEM; but it was packaged as if it were a Toyota product. And so far it's working fine.