GS8/GN8 radiator reservoir

Coolant Reservoir / Expansion Tank original for JAC GS8 / GN8

Product Description:

Radiator cap (Coolant Expansion Tank). It is the plastic tank designated to receive and pump excess coolant from the engine in JAC GS8 and GN8 cars. It plays a vital role in the cooling system by balancing the pressure inside the radiator. When the engine heats up, the water expands and moves to the bottle, and when it cools it returns again to the engine.

Basic function:

Pressure equalization: prevents water hoses (flaps) from bursting by providing space for the fluid to expand under high pressure.

Liquid level monitoring: Allows you to easily check the cooling water level through the marks shown on it (Min/Max) without the need to open the radiator cap.

Air removal: Helps expel air bubbles from the cooling cycle, preventing "air pockets" that cause overheating.

This piece is original to ensure the quality of the reinforced plastic that can withstand high steam pressure and does not crack or discolour over time.

Specifications and features:

Part name: Coolant Reservoir.

Vehicle model: JAC GS8 and GN8 (GAC).

Compatible models: 2018, 2019, 2020, 2021, 2022 (available for newer models).

Components: Usually comes with its own cap (or without depending on the part number).

Condition: original.

Symptoms of damage to the radiator cap:

Cracks and leaks: traces of water (or oil in rare cases) appear around the bottle or under the car.

High engine temperature: due to a lack of coolant due to leakage or a damaged cap that no longer controls pressure.

Discolouration of plastic: The color of the bag tends to become dark or burnt brown, making it brittle and susceptible to breaking at any touch.

Coolant odor: Smell a distinct “sweet” odor of coolant when you open the hood.

⚠️ IMPORTANT NOTICE: Please ensure that the part matches the chassis number of your vehicle before purchasing the product or after ordering.