This part, known as the radiator hose , is a thick, reinforced rubber hose that is a crucial component of the JAC GS3 engine cooling system (2018-2023 models). There are typically two main parts: the upper hose , which carries the hot coolant from the engine to the radiator, and the lower hose, which returns the coolant from the radiator to the engine. Their function is to efficiently transport the coolant under high pressure and temperature.
(Note: To get the correct part, you must determine whether you need the upper or lower hose.)
If you notice an abnormal swelling in the hose, or a clear leak of coolant from it, or if it becomes hard and brittle when pressed, this indicates that it needs to be replaced immediately to avoid it bursting and the engine overheating.
⚠️ Important Notice: Please make sure the part matches your vehicle's chassis number before purchasing the product or after ordering.