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

when you pressed on the inside of the cap, it felt rough and was sticking out, I was also thrown by a weird sticker on the cap I saw everywhere and have not found another copy of this sticker. Maybe it's just a new change from Denso? Update: After further testing and use, I've decided to keep it and it seems to be working.

. 4Runner or the one pictured in this product listing. The rubber seals warped from the heat and cracked when I unbolted them from the radiator for the FIRST TIME. Unfortunately, I'm sticking with it until I get a real OEM radiator cap. Very disappointed.

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…