Tridon Thermostat TT8800-180P Gold 4 bolt holes

4 bolt holes

That's small when compared to the human hair which is approximately 90 micron

The sender responds to changes in engine coolant temperature

while also being suitable for everyday driving

High flow version of TT1 series

Tridon Thermostat TT8800-180P Gold 4 bolt holesThe thermostat is a temperature control valve assembly used in the vehicle cooling system. Located in a housing usually at the front of the vehicle engine, the thermostat allows circulation of coolant through the radiator once the predetermined engine temperature is achieved. There are various styles of thermostats available including conventional, by pass, thermostat housing assemblies, high flow and inserts used in conjunction with original housing.