This part, known as the engine belt , accessory belt , or serpentine belt ( or drive belt ), is a reinforced, ribbed rubber band that surrounds several pulleys in the engine of a JAC GS3 (2018-2023 models). Its primary function is to transfer rotational power from the crankshaft to the engine's external auxiliary components, which include the alternator , water pump , and air conditioning compressor . Ensuring the efficient operation of this belt is essential for the proper functioning of these vital components.
If you notice a weakness in the car's lighting, inefficiency in cooling, the appearance of deep cracks or corrosion on the belt surface, or you hear a sharp "squeaking" sound from the engine (indicating belt slippage), this indicates the need to replace it to avoid the vehicle suddenly stopping as a result of the belt breaking.
⚠️ Important Notice: Please make sure the part matches your vehicle's chassis number before purchasing the product or after ordering.