This part is known as the AC compressor hose or compressor line, and it is a flexible or semi-rigid tube (often reinforced rubber or aluminum with rubber fittings) used in the JAC GS3 car's air conditioning system. Its main function is to transport Freon gas/liquid under varying pressures and temperatures between the AC compressor and other system components (such as the condenser or evaporator).
(Note: The air conditioning system contains more than one hose for the compressor, namely the high-pressure hose and the low-pressure hose. To get the correct part, you must determine which one is required.)
If you notice a sudden decrease in cooling, hear a hissing sound when the air conditioner is turned on, or notice light oily spots in the hose area, these are signs of a Freon leak due to damage or cracking in the hose, and it should be replaced and the system recharged.
⚠️ Important Notice: Please make sure the part matches your vehicle's chassis number before purchasing the product or after ordering.