Chery QQ Thermostat (Part No.: 372-1306020)

First of all, let's simplify things: The Chery QQ thermostat 372-1306020 is not merely a "small valve" - it is the "temperature controller" of your QQ engine. It can be imagined as an intelligent gatekeeper, controlling the flow of coolant (the liquid that cools the engine) to keep the engine at the perfect working temperature. It's too cold and the engine wears out quickly. If it's too hot, it will overheat. This small part prevented the occurrence of both.

This thermostat is specially designed for Chery QQ 372 engine models (mainly the classic QQ3 0.8L, from 2003 to 2012; be sure to check the car's VIN or user manual for confirmation!) Its design fits the QQ cooling system like a glove: the size matches the coolant channels, the installation ports align with the engine and radiator hoses, and it has been calibrated to be on/off at the correct temperature of the 372 engine (approximately 82-88°C). Buy an ordinary one? You will run into trouble: it turns on too early (the engine remains cold) or too late (the engine overheats), or the coolant leaks - this is a nuisance for the components that keep the engine healthy.

Core work: Why can this thermostat keep your engine running well

Don't ignore its role - it has two important functions to protect your QQ engine:

Quick heating engine (cold) : When you start QQ in cold weather, the thermostat remains off. This traps the coolant inside the engine, so the engine quickly warms up to the ideal operating temperature (rather than wasting heat on the radiator). A warm engine runs more smoothly, consumes less fuel and wears out more slowly.

Cool the engine (hot) : Once the engine reaches the appropriate temperature, the thermostat turns on. This allows the hot coolant to flow to the radiator, where it cools down, and then flows back to the engine to prevent it from overheating, even in hot weather or during long drives.

What It Fits (And What It Won’t)

• Fits These Models: Chery QQ3 0.8L (2003–2012, 372 engine variant; confirm via VIN).

• Won’t Fit These:

• QQ models with other engines (e.g., QQ3 1.0L with 472 engine): Their cooling systems need different thermostats—this one won’t calibrate right.

• Other Chery models (e.g., Tiggo 3, Arrizo 5): Their engines are bigger, so they need larger thermostats.

• Non-Chery vehicles: Even if it “looks similar,” the ports and temp range are wrong—installing it causes overheating or cold engine issues.

Installation & Maintenance (Pros Only—Engine Damage Risk!)

Installation: Leave It to Chery Techs

1. Drain coolant safely: They remove old coolant (toxic—can’t pour down drains) to avoid spills.

2. Swap the thermostat: Disconnect the coolant hoses, remove the old thermostat, and install 372-1306020 with a new gasket (never reuse old gaskets!).

3. Refill and bleed: They add Chery-approved coolant and bleed air bubbles (bubbles block coolant flow, causing overheating).

Maintenance: Watch for These Signs

• Engine takes forever to warm up: Means it’s stuck open (coolant flows to the radiator nonstop).

• Engine overheats fast: Means it’s stuck closed (coolant can’t reach the radiator).

• Coolant leaks under the car: Likely a bad gasket—get it fixed fast to avoid low coolant.

Summary: Chery QQ Thermostat (372-1306020)

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