Review on TOYOTA 90916 A3003 Genuine Toyota Thermostat by Tim Duncan

Installed normally, but did not let air bubbles through and therefore did not open. After many big headaches and wasting a lot of time trying to "burp" the system, I finally had to remove it and drill a small bypass hole to allow air to escape. Bleed straight away and works fine now but unfortunately I'm sure what I did wasn't a long term solution on modern cars and the right move is to replace. I would just buy $5 at O'Riley's if I knew I was going through all this hassle. EDIT (2/15/17) A replacement was sent and installed as requested and is working as expected. It must have gone badly the first time. The good news is that with all the practice I gained the first time, the swap was a breeze. Many Thanks.