This is an auxiliary water tank specifically designed for trucks, also known as a spare coolant reservoir. Its main function is to store spare coolant. When the liquid in the main water tank decreases due to high temperature expansion or evaporation, the auxiliary water tank can automatically replenish and recycle it to ensure that the cooling system is always in optimal condition. It effectively prevents the engine from overheating and avoids damage to the water tank due to insufficient coolant. It is easy to install, robust, and durable, making it an important component for ensuring safe long-distance truck driving and preventing engine overheating.
