Thermostat With Cover Fit For LH 260 300 E2 T3b 370 Promax 420 400 E4 2B IRS 22901 22902

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Compatibility: Direct replacement thermostat and cover assembly engineered to match the unit's mounting flange, hose connections, and thermostat specifications for a proper fit and cooling system function on the specified models. Thermostat Function: Regulates engine coolant temperature by opening at a predetermined temperature (e.g., 82°C/180°F), allowing coolant to flow to the radiator, and closing when cold to help the engine reach optimal operating temperature quickly. Cover: Houses the thermostat and provides the sealed connection point for the upper radiator hose. Includes a gasket to leaks. Material: The thermostat is typically a wax-pellet type in a brass or aluminum housing. The cover is often aluminum or composite. Application: A critical component for efficient engine warm-up and temperature control. A stuck thermostat (open or closed) causes overheating or prolonged warm-up times. Replacing the thermostat and cover/gasket as an assembly ensures a leak-free seal.