Review on AISIN THT-018 Thermostat: Efficient Temperature Control for Optimal Performance by Edgar Rowe

The only way to pay extra for this thermostat is to buy it directly from Toyota. At this price point, there's absolutely no reason to skip a pad. The $4.50 thermostat from your local parts store comes with a gasket. I didn't put this thermostat in a pot of water with its competitors to test the opening temp, but it definitely looks like a $4.50 thermostat (which I had to buy to get the damn gasket). If you're coming to the conclusion that I'm a little unhappy that I had to go into town to buy a seal, then you've definitely followed the plot. It's a 30 cent part, it has to be changed with the thermostat, why so cheap when you're charging that much?