Thermostat 409.1306008 is an engine cooling system thermostat for four-cylinder gasoline engines of the ZMZ-409 family — the powerplants fitted to UAZ Patriot, Hunter and commercial UAZ models as well as related GAZ applications. The thermostat's job is simple and critical: it blocks coolant flow to the radiator until the engine reaches operating temperature, then modulates flow to hold that temperature steady.
When it sticks open, engines run cold, burn more fuel and wear faster; stuck closed, they overheat — which is why workshops replace thermostats preventively with every major cooling service. The part weighs about 0.72 kg.
Vehicle populations running ZMZ-409 engines remain large across the CIS, the Middle East, Africa and Latin America, sustaining dependable aftermarket consumption of this reference. Supplied wholesale from 200 pieces at about 9 USD each, the thermostat is a standard stocking line for parts distributors, fleet workshops and export consolidators assembling UAZ-platform spare-parts programs.
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