Wholesale Price 612630060894 Thermostat Assembly Accessoires For JAC Shacman Sinotruk HOWO Dongfeng Truck Engine Cooling System Features Automatic Regulation : The 612630060894 thermostat assembly controls valve operation based on coolant temperature fluctuations. It restricts coolant flow to the radiator at low temperatures to facilitate rapid engine warm-up and opens at high temperatures to enhance cooling efficiency. Stable Temperature Sensing : The 612630060894 thermostat