986 / 996 / 987 >>08 / 997 >>08 Low Temp Cooling Thermostat with Housing & Gasket

99610612553  &  99610632650  99610601361    4249.71D This low temperature thermostat includes the gasket and housing and opens at 71c 160F, allowing the engine to run at cooler temperatures across all cylinders. The standard system temp is 83c 181F. Helps to reduce the chance of bore scoring on cylinders. Helps cooler engine and oil temperature and is also a great benefit for racing, trackdays, and especially for models with Tiptronic transmissions.