【Upgrade Materials】COILFRDS Engine Coolant Thermostat Housing Assembly is made of high-strength aluminum alloy, offering superior heat dissipation and a longer service life compared to traditional plastic housings
【Precise temperature control】The paraffin inside the thermostat is mixed with graphite and copper powder in a specific ratio,providing better thermal conductivity than pure paraffin,Main Thermostat valve opens at 78℃/172.4°F Subordinate Thermostat valve opens at 95℃/203°F
【Quality Inspection】 Before leaving the factory, each thermostat housing is subjected to pressure, thermal cycle, and sealing tests to ensure optimal cooling efficiency and durable, trouble-free operation